Question

find the area of the triangle whose lenghts of sides are 15cm,17cm,21cm(useheron's formula)​

Answer 1

Answer:

Area of triangle by heron's Formula = 126.18 sq-m

Step-by-step explanation:

Area of triangle =

here S is semi-perimeter of the triangle

here a,b and c are the sides of triangle

a = 15 m

b = 17 m

c = 21 m

Area

Area of triangle by heron's Formula = 126.18 sq-m

Since the given triangle is not right angle triangle so we can't apply 1/2 (base)(height ) formula.

and no additional information given about altitude of triangle.