Question

Calcular la medida de una rigion triangular de vertices A, B y C. Si AB=BC=5 : AC=8

Answer 1

a = 5 ...lados iguales
b = 8....base

Formula area triangulo isosceles.

A = [ b.√ (a2 - b2/4) ] / 2

A = [ 8* √ ( 5^2 - 8^2 /4 )] / 2
A = [ 8* √ ( 9 )] / 2
A = 12