Question

The semi-perimeter of a triangle whose sides
are 20 cm , 16 cm and 10 cm is
a. 30 cm b. 46 cm c. 23 cm d. 26 cm​

Answer 1

Semi perimeter = $\frac{a+b+c}{2}$ {where a,b, and c are the 3 sides of the triangle}

S= $\frac{20+16+10}{2}$

   = $\frac{46}{2}$

   = $23cm$

Semi perimeter is c)23cm.