Question

(5) An isosceles triangle has to be made like this.
The height should be 2 metres less than the base and
the area of the triangle should be 12 square metres.
What should be the length of its sides?​

Answer 1

Answer:

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Step-by-step explanation:

An isosceles triangle has to be made like this.

The height should be 2 metres less than the base and

the area of the triangle should be 12 square metres.

What should be the length of its sides?

Answer 2

Answer:

Area =( base×height) /2

12=x(x-2) /2

12×2=x(x-2)

24=x^2 - 2x

x^2 - 2x-24=0

x^2-2x +1= 24+1

(x-1) ^2 = 25

x-1=√25

x-1=+-5

so the answer =

x=5+1=6

x= -5 +1= -4