A rectangular has a diagonal length of 15 cm and a length OF 7cm find the width of the rectangular.
1. A rectangular has a diagonal length of 15 cm and a length OF 7cm find the width of the rectangular.
Jawaban:
◣ ◢
█ █
█ █
◤ ◥
2. perimeter of rectangular is 40m.The length of rectangular is 15m.The width of rectangular is......cepat yaa
Jawaban:
Perimeter = 2 ( length + width)
40m = 2 length + 2 widht
40m = 2 × 15 + 2 widht
2 widht = 40 - 30
2 widht = 10
widht = 10/2 = 5
perimeter = keliling
length = panjang
widht = lebar
3. The Length of a rectangular is three time the width of it.The area of the garden is 48m square.find the dimension of the garden
Jawab:
Penjelasan dengan langkah-langkah:
Misalkan Panjang = P dan Lebar = L
P = 3L
Area = 48 m²
Area = P×L = (3L)(L) = 3L²
⇒ 3L² = 48
⇒ L² = 16
⇒ L = 4 m (Tidak mungkin lebar negatif)
Diperoleh P = 3×4 = 12 m
Maka, dimensi kebun: Panjang = 12 m dan Lebar = 4 m
4. The swimming pool is rectangular with a length of 10 m and a width of 4 m, with a ceramic tile installed around the outside of the pool. If the width of the area where the tiles are installed is 50 cm, what is the area of all the tiles around the pool? Bantu yah plss
Jawaban:
kita harus menjawab sesuai dengan jawaban yang benar supaya bapak/ibu guru dapat menjawab soal kamu dangan baik
5. A 300 m long wire is used to fence a rectangular plot whose length is twice its width. Find the length and breadth of the plot.
Penjelasan dengan langkah-langkah:
x = width
length + width = 300
2x + 4x = 300
6x = 300
x = 300/6 = 50
width = 50 m and length = 2 × 50 = 100 m
breadth = length × width
= 100 × 50
= 500 m²
6. ollie has a rectangular banner for his cafe . the area for the banner is 180 square inches. the lenght of the banner is 1 1/4 its width . what is the width of ollie's banner?
Jawaban:
L = 180 square inches
p = 1¼ x l
L = p x l
180 = 1¼ l x l
180 = 1¼l²
l² = 180/ 1¼
l² = 144
l = √ 144
l = 12 inches
the width of ollie's banner is 12 inches
7. The perimeter of a rectangular laboratory is 64 m. If the length of the laboratory is 23m, find the width of the laboratory.
Jawaban:
Jadi lebar laboratorium tersebut adalah 9 meter
Cara:64 - (2 x 23 = 46) = 18 : 2 = 9 meter
Jadikan Jawaban tercerdas ya agar kapan-kapan saya akan bantu lagi ｡◕‿◕｡
8. Mr Rahmad has a fish pond is a rectangle shaped. The length of the fish pond is 9 m and the width is 7 m. What is the area of the fish pond?
Jawaban:
63 cm²
Penjelasan dengan langkah-langkah:
langkah pengerjaan ada pada gambar
9. A rectangular plot of land is drawn with a length of 5 cm and a width of 3 cm. The scale used is 1: 600. The actual land area is
Penjelasan dengan langkah-langkah:
Jarak sebenarnya = jarak pada peta : skala
Js = jp : s
Maka :
Panjang :
Js = 5 × 600 = 3.000 cm = 30 m.
Lebar :
Js = 3 × 600 = 1.800 cm = 18 m.
Luas sebenarnya :
30 × 18 = 540 m²
Semoga membantu.
10. a length of a rectangular garden is 5 more than its width and surrounded by a uniform path 2m wide if the total area of the garden plus path is 300sq meters
Penjelasan dengan langkah-langkah:
gmbartah grafik fungsi berikut y=×2+4×+2 y=_2×2+4×+5
11. A rectangular white board has an area of 30.000 square centimetres. The length of the white board is 300 cm. Work out the width of the white board.
Jawaban:
width = 100 cm
Penjelasan dengan langkah-langkah:
Area of rectangular = length x width
width = Area ÷ length
= 30.000 ÷ 300
= 100 cm
12. The length of a rectangular garden is 6 meters more than the width.The area of the garden is 27 m². Find the dimension of the garden.
The answer:
At the attachment. I hope that'll help u (^^)v
13. bantu jawab kakakA rectangular garden in Mrs Dorothy's house has a length of 100 meters and a width of 50 meters. A square swimming pool is to be constructed inside the garden. Find the length of one side of the swimming pool if the remaining area (not occupied by the pool) is equal to one half the area of the rectangular garden.
100*50=$150 maaf y klo salahhasilnya adalah 2 meter maaf kalo salah
14. A person, standing on the bank of a river, observes that the angle of elevation of the top of a tree on the opposite bank to be 48º.When he walks 30 away from the bank, he finds the angle of elevation of the top of the treeto be 36º.If the height of the person is 1.8 m, find the height of the tree and the width of the river.(HINT: angle of elevation is angle formed by horizontal line and eyesight to the top of thetree.
Jawaban:
angel is here you in there
15. A carpet laid on a rectangular floor of length 8 m and breadth 4 m. This leaves a margin of width 1 m around the carpet. Find the area and perimeter o
Jawab:
20 m^2
Penjelasan dengan langkah-langkah:
Area of rectangular floor = width * length = 4 * 8 = 32
Area of carpet floor = width * length = 2 * 6 = 12
Area of the perimeter = 32 -12 = 20 m^2
16. Siti has a rectangular waffle the lenght is 6 cm and width is 2 cm. The perimeter of the waffle is . … cm.
Perimeter
K = 2p + 2l
K = 2(6) cm + 2(2) cm
K = 12 cm + 4 cm
K = 16cm
17. rectangular room has an area of 128 m2. The width of the room is 8 m. (a) Work out its length! (in meter) (b) Work out the perimeter of the room! (in meter)
Jawaban:
8/10
Penjelasan dengan langkah-langkah:
karena itu gak ada SMASH bowl
tapi ada ineter jadi keren lah
cukup untuk ukuran batu bata
18. The perimeter of a rectangular TV screen is 150 cm. The ratio of the width to the height is 16:9. Find the area of the screen.
Answer/Jawaban:
1296 cm^2
Explanation :
Given the perimeter is 150 cm, meanwhile the ratio of the width and the height is 16 : 9. Assume the width and the height is 16x and 9x. We can substitute to the perimeter formula :
P = 2(16x + 9x) = 150 cm
<=> 2.25x = 150 cm
<=> 50x = 150 cm
<=> x = 3 cm
So, the width is 16 x 3 cm = 48 cm, meanwhile the height is 9 x 3 cm = 27 cm.
We can conclude that the area of the screen is 48 x 27 = 1296 cm^2.
Penjelasan :
Diketahui kelilingnya 150 cm, sedangkan perbandingan lebar dan tingginya 16 : 9. Misalkan lebar dan tingginya adalah 16x dan 9x. Kita bisa masukkan ke rumus keliling :
P = 2(16x + 9x) = 150 cm
<=> 2.25x = 150 cm
<=> 50x = 150 cm
<=> x = 3 cm
Jadi, lebarnya adalah 16 x 3 cm = 48 cm, sedangkan tingginya adalah 9 x 3 cm = 27 cm.
Kita bisa simpulkan bahwa luas layarnya adalah 48 x 27 = 1296 cm^2.
19. cindy wanted to check if the top of a side table she saw for sale is perfectly rectangular she measured the dimensions of the table and found the following : length of table 15 inches width of table : 7,5 diagonal length : 17 inches is the table perfectly rectangular? explain your answer
Jawaban:
length ( l ) = 15 inches
width ( w ) = 7,5 inches
diagonal length ( d ) = 17 inches
question : if the table perfectly rectangular?
Penjelasan dengan langkah-langkah:
since we have diagonal length and know each diagonal divides the rectangle into two congruent right triangles, we can use Pythagoras theorem that is the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse (the side opposite the right angle). if we use algebraic notation it become:
l² + w² = d²
15² + 7,5² = 17²
225 + 56,25 = 289
281,25 = 289 => notsame
since it's not same so it's not a right triangle and of course it's prove that the table is not perfectly rectangular
hope that will help you, sorry for my bad english ^_^")
20. the perimeter of a rectangular field is 70m and it's length is 15m longer than its breadth. the feild is surrounded by a concrete path of width 5m. find the area of the path.
l1 = b1 + 15
P = 2(l+b)
70 = 2(b+15+b)
70 = 2(2b+15)
70 = 4b + 30
40 = 4b
10 cm = b1
l1 = 15 + 10 = 25 cm
area of path
= A.rectangular 2 - A.rectangular 1
= 35 × 20 - 25 × 10
= 700 - 250
= 450 cm^2
0 komentar:
Posting Komentar