Math, asked by lalitsoma745, 4 months ago

9. The base and height of a triangle are in
the ratio 4: 5. If the area is 640 sq. cm,
find the base and height.​

Answers

Answered by gfudhfbc
23

Answer:

let required number be x

area of triangle is 1/2×base ×height

base=4x

height =5x

Step-by-step explanation:

1/2×4x ×5x =640

4x will divided by 2

2x×5x=640

10x²=640

x²=640/10

x²=64

taking square root

x=8

required number is 8

base =4x=4×8=32

height =5x=5×8=40

therefore base is 32cm and height is 40cm

Answered by aroofirfan969
1

Step-by-step explanation:

let the number be x

area of traingle=1/2×base×height

base=4x

height=5x

1/2×base×height=640

1/2×4x×5x=640

(2 and 4 will be divided)

2x×5x=640

10x²=640

x²=640÷10

x²=64

(root)

x=8

base=4x=4×8=32

height=5x=5×8=40

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