Question

area of parrallelogram is 81 cm and height is 9 cm. find the base of parrallelogram​

Answer 1

Step-by-step explanation:

A=bh

Solving forb

b=A

h=81

9=9cm

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Answer 2

Answer:

Base of parallelogram =  9/sin(θ) cm.

Step-by-step explanation:

In context to the given question;

we have to find the value of base of a parallelogram

Given;

Area of a parallelogram = 81cm²

Height = 9 cm

base = to be found

angle  = θ ( angle at which the parallelogram is bent)

we know that,

let the base be "b"

Area of a parallelogram = height x base x sin(θ)

putting the values we get;

81 = 9 x b x sin(θ)

by transposing method , we get;

b x sin(θ) = 81/9

b x sin (θ) = 9

therefore the value b

b = 9/sin(θ)

∴ Base of parallelogram =  9/sin(θ) cm.