Question

Find the volume of a right triangle prism whose height is 36cm and the sides of whose base are 31, 25, and 15cm respectively

Answer 1

Answer:

Area of triangular cross section=vs(s-a)(s-b)(s-c)

s =3l+25+15/2=71/2 = 35.5

Area =v35.5 x4.5x10.5x20.5=185.4

Volume=Areax height

185.4x36 =6674.4 cm2

OR

Area = I/2bh=25x15/2=187.5

Volume=187.5x136=6750cm2