Question

in a triangle the height is double the base and the area is 400 CM square find the length of the base and height

Answer 1

Let base= x cm   ∴height= 2x

Area of triangle= $\frac{1}{2}$bh= $\frac{1}{2}$*x*2x= $x^{2}$= 400

∴x= √400= 20cm

Base=20 cm and Height=40 cm

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Answer 2

let height=2x and base=x
area=1/2×2x×x
=x^2
A.T.Q
x^2=400
x=√400
x=20
height=2x=2×20=40cm
and base =x=20cm