(a) A circle has centre at (−2,−1). One point on its circumference is (−2, −3). Find its radius, correct to 1d.p.

(b) If y = x2 for 0 £ x £ 2 is completely rotated round the x – axis, find the volume of the solid of revolution produced.

Similar Questions

ESTION 22.1 In the diagram below, 𝑂 is the centre of the circle and 𝐴 and 𝐵 are points on the circumference of the
1. 1 answer
QUESTION 99.1 In the diagram below, 𝑂 is the centre of the circle and 𝑃, 𝑆 and 𝑇 are points on the circumference of
1. 1 answer
O is the centre of the circle and A and B are points on the circumference of the circle. The radians of the circle is 12 cm and
1. 2 answers
A circle has a centre at (3,5). The point (3,8) is on the circle. What is the circumference of the circle to the nearest tenth?
1. 1 answer