Question

write a program and to calculate
area of triangle; circles and
rectangle​

Answer 1

Explanation:

Area of Circle: 3.14*r*r (r=Radius)

Area of Rectangle: a*b.

Area of Triangle: sqrt(s*(s-a)*(s-b)*(s-c)); Where S=(a+b+c)/2;

Answer 2

Explanation:

this is your answer buddy