Question

the base of a parallelogram is twice its height if its area is 800 cm to find its height and base​

Answer 1

Answer:

height = h

base = b = 2h

area = A = 800 = b×h = 2h × h

2h²= 800

h² = 400

h= 20 cm

base = 2× 20 = 40 cm

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Answer 2

Answer:20

Step-by-step explanation: ar of ||gm is = base×height

Given

Ar of ||gm= 800cm^2

Let height of ||gm be X

So, base of ||gm = 2X

Now,

A= b×h

800cm^2= 2X ×X

2X^2= 800cm^2

X^2= 800cm^2/2

X^2= 400cm^2

X =√400cm^2

X = 20cm = base

2X= 2×20= 40cm