Question

Find the perimeter of the following shapes.*

a. A Triangle of sides 6 cm, 8 cm and 10 cm .

b. An isoscles triangle with two equal sides 5 cm and the third side 9 cm .
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Answer 1

Answer:

a.perimeter =24 cm

b.perimeter =19 cm

Step-by-step explanation:

perimeter of triangle =6+8+10 cm

=24 cm

perimeter of isosceles triangle =2(5) +9

=19 cm

Answer 2

Solution!!

(a) The sides of the triangle are given. We just have to find the perimeter of the triangle. The sum of all sides of the triangle is the perimeter of the triangle.

Perimeter = Sum of all sides

Perimeter = 6 cm + 8 cm + 10 cm

Perimeter = 24 cm

(b) This is an isosceles triangle which has 2 equal sides. The two equal sides are 5 cm and 5 cm. The third side is 9 cm. This is all given. We have to find the perimeter which is the sum of all sides of triangle.

Perimeter = Sum of all sides

Perimeter = 5 cm + 5 cm + 9 cm

Perimeter = 19 cm