Question

Q1. Calculate the area and perimeter of the following ring where a = 7cm, b = 14cm (ii) Perimeter of Ring:

Answer 1

Answer:

Step-by-step explanation:

• Circumference of circle = 2πr

Perimeter of ring = 2πr = 2 × 22/7 × 7

Perimeter of ring = 2πr = 2 × 22/7 × 7 = 44 cm

• Circumference of circle = 2πr

Perimeter of ring = 2πr = 2 × 22/7 × 14

Perimeter of ring = 2πr = 2 × 22/7 × 14 = 88 cm