Question

the base of an isosceles triangle is 16 cm and its perimeter is 56.Find the area of the triangle​

Answer 1

Answer:

32×root21

Step-by-step explanation:

we know that isosceles triangle has two same side so

perimeter =56

other sides = 56-16 =40

each side of the triangle =40/2=20

area of triagle

semi perimeter =a+b+c/2

area = root s×( s-a) (s-b)(s -c)

root 28 ×(28-20) ×(28-20) ×(28-16)

=root of28 ×8×8×12

=32 × root21

hope it help you