if the perimeter of an isosceles triangle is 64 cm and its equal sides are 20 cm .find the area of isosceles triangle using herons formula?
Answers
Answered by
2
Answer:
192
Step-by-step explanation:
20+20+x=64
40+x=64
64-40= 24 (third side)
herons formula = 64 / 2 =32
A = UNDER ROOT S× (S-A) × (S - B) × (S-C)
A= ur 32×( 32-20 ) ×(32-20) ×(32- 24)
A= ur 32 × 12 ×12×8
A= ur 32×144×8
A=UR 256 ×144
A= 16×12
A=192
Similar questions