Question

The area of an isosceles triangle is 300 CM square the height of the triangle is 15. Find the perimeter of the triangle.​

Answer 1

Answer:

1/2bh is the area of ∆

so, 1/2×15×b = 300.

b = 300/15×2

b= 40

using Pythagoras theorem,

15^2+20^2=h^2

=25.

so, the hypotenuse is the other side.

we know that two sides of an isosceles ∆is equal.

so, the other side is also 25.

so, the perimeter is 25+25+40.

=90cm

Step-by-step explanation:

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Answer 2

Answer:

1/2bh is the area of ∆

so, 1/2×15×b = 300.

b = 300/15×2

b= 40

using Pythagoras theorem,

15^2+20^2=h^2

=25.

so, the hypotenuse is the other side.

we know that two sides of an isosceles ∆is equal.

so, the other side is also 25.

so, the perimeter is 25+25+40.

=90cm