Question

Find the perimeter of each of the following shapes:
(a) A triangle of sides $3$ cm, $4$ cm and $5$ cm
(b) An equilateral triangle of side $9$ cm
(c) An isosceles triangle with equal sides $8$ cm each and third side $6$ cm

Answer 1

(a) Perimeter $=3+4+5=12cm$

(b) Perimeter $=9+9+9=27cm$

(c) Perimeter $=8+8+6=22cm$