Question

Proof area of triangle without using quadrilaterals

Answer 1

Answer:

uh also proved it by herons formula

Answer 2

A method for calculating the area of a triangle when you know the lengths of all three sides.

Let a,b,c be the lengths of the sides of a triangle. The area is given by:

Area = √ p ( p − a ) ( p − b ) ( p − c )

where p is half the perimeter, or

a + b + c

2