Question

Find the length of
(i) Radius if the diameter is 26 cm.
(ii) Circumference if the diameter is 13 cm.

Answer 1

(1) radius = 13 cm

r = d/2

r=26/2

r = 13

Answer 2

Step-by-step explanation:

(i) Radius if the diameter is 26 cm.

→ radius = diameter÷2

radius = diameter÷2 = 26÷2

radius = diameter÷2 = 26÷2 =13cm

(ii) Circumference if the diameter is 13 cm.

Circumference if the diameter is 13 cm.→circumference= π d

Circumference if the diameter is 13 cm.→circumference= π d = 3.14 × 13

Circumference if the diameter is 13 cm.→circumference= π d = 3.14 × 13 =40.82 cm