ExamPlay Light Logo
サインイン

Mathematics for IGCSE & O level - Equations (Section 5 - No. 37)

If the circumference of a circle is 2πr and its radius is 3, what is the circumference?
6π
9π
3π
12π

説明

Substituting r=3 into 2πr yields 2 * π * 3= 6π.

コメント (0)

広告