ExamPlay Dark Logo
登入

Mathematics for IGCSE & O level - Mensuration (Section 9 - No. 18)

If a circle has a radius of 7cm, what is its approximate circumference?
21.98 cm
43.96 cm
14 cm
153.94 cm

解释

Circumference = 2 * pi * radius = 2 * π * 7cm ≈ 43.96 cm.

评论 (0)

广告