Question

SOLVE THIS ABOVE QUESTION

Answer 1

let hieght be x
so base=2x+8
now
$area = \frac{1}{2} \times base \times height \\ 480 = \frac{1}{2} \times 2x + 8 \times x \\480 = x + 4 \times x \\ 480 = {x}^{2} + 4x$
i know till this
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Answer 2

uphello here is your answer by Sujeet yaduvanshi,




GIVEN THAT:) Area of Triangle=480cm²



Let to be base be x
then,

Height of the Triangle be x


According to the question

we know that formula,

1/2*base *height


then,


Area of Triangle=1/2*b*h
480=1/2*2x+8*x

480=x²+4x


Arrange in particular form,

x²+4x-480

x²+24x-20x+480


x(x+24)-20(x+24)

x+24=0
x=-24


x-20=0

x=20

Answer 20


that's all