Question

Find the perimeter of each of the following shapes :
(a) An equilateral triangle of side 9 cm.
(b) An isosceles triangle with equal side 7 cm each and third side 6 cm.

plss only answers

Answer 1

Step-by-step explanation:

(a) perimeter= (9+9+9)cm= 27cm

(b) perimeter=(7+7+6)cm =20cm

Answer 2

Answer:

a)27cm

b)20cm

Step-by-step explanation:

Formula used:-

perimeter of triangle=sum of all sides,so

a)9cm+9cm+9cm=27cm

b)7cm+7cm+6cm=20cm