Question

The edge of a triangle board are 6cm, 8cm and 10 cm find the cost of painting at rate rs 0.09 per centimeter square

Answer 1

(6,8,10) it is Pythagoras Triad
so, triangle is right angled triangle
Area of triangle =1/2 ×b×h=1/2×6×8
=24cm ^2
rate of painting is 0.09 per cm^2
so, cost of painting =24×0.09=₹2.16