If a,b,c are three sides of the triangle, then the perimeter of the triangle is
a+b+c
base height
1/2×base×height
(a+b+c)/2
The perimeter of the triangle is (a + b + c).
If the sides of a triangle are a, b and c. Then, what is the semi perimeter of the triangle?
Suppose p denotes the perimeter of a triangle with sides a, b and c and s is the semi perimeter. If A denotes the area of the triangle, √p(p−2a)(p−2b)(p−2c)A = __.