Question

the length of equal sides of an isosceles triangle is 13 cm and the length of the base is 24 cm then the area of the triangle will be​

Answer 1

Step-by-step explanation:

area of triangle- 1/2* base * height

1/2*24*13

=156cm

Answer 2

Step-by-step explanation:

it is an isosceles triangle so length of two sides is equal, in this case 13 cm.

therefore perimeter = 13 + 13 + 24 = 50

semiperimeter = 25

a = 25 - 13 = 12

b = 25 - 13 = 12

c = 25 - 24 = 1

therefore, we have (square root) 25 x 12 x 12 x 1 = 25 x 12 x 12

12 gets cancelled from the square root and we are left with square root of 25 which is 5

so 12 x 5 = 60 cm^2

hence proven