Question

which formula is used for an isosceles triangle??? ​

Answer 1

Answer:

Herons formula

Step-by-step explanation:

Semiperimeter= a+b+c/2

Area = Underoot s×s-a×s-b×s-c

Hope it helps you

Mark the answer as brainlist

Answer 2

Using length of 2 sides and angle between them=A = ½ × b × c × sin(α)

Using 2 angles and length between them=

A = [c2×sin(β)×sin(α)/ 2×sin(2π−α−β)]

hope it helps you ❤️❤️