Question

Find the perimeter of each of the following figures.
(a) A triangle of sides 4 cm, 4.5 cm, 4.5 cm.


(b) An equilateral triangle of side 10 cm.


(c) An isosceles triangle with equal sides 6 cm each and third side 10 cm


(d) A square of side 20 m


Pls say the answer with a diagram​

Answer 1

Answer:

a) Sides of a triangle- 4cm , 4.5 cm , 4.5 cm

4 + 4.5 + 4.5 = 13

Perimeter of the triangle = 13 cm

b) Side of an equilateral triangle = 10cm

3 × 10 = 30cm

Perimeter of the triangle = 30cm

c) Sides of an isosceles triangle = 6cm , 6cm and 10cm

6 + 6 + 10 = 22 cm

Perimeter of the triangle = 22cm

d) Side of a square = 20m

4 × 20 = 80m

Perimeter of the square = 80m