Question

find the perimeter of each of the following shapes:

(1)A triangle of sides 3cm, 4cm and 5cm.
(2)an equilateral triangle of side 9cm
(3)an isosceles triangle with equal sides 8 can each and third side of 6 cm​

Answer 1

Answer:

Formula for perimeter of triangle - sum of all sides

Explanation:

(1) Sum of all sides = 3 + 4 + 5 = 12 cm

(2) Sum of all sides = 9 + 9 + 9 = 9 × 3 → 27 cm

(3) Sum of all sides = 8 + 8 + 6 = 22 cm