Question

Please help me, i only have 30 minutes!

Answer 1

Radius = Diameter ÷ 2 = 13 ÷ 2 = 6.5 cm

Circumference = 2πr

→ Circumference = 2 × π × 6.5

→ Circumference = 13 π cm

Therefore, circumference of given circle = 13 π cm

Hope it helps you :)

Answer 2

Radius= 13÷2

= 6.5

• c= 2πr
• 2×22/7×6.5
• 40.85cm

Explanation:

Hope that helps