Question

What is the height of the shape formed by the sectors shown below?

A. r

B. d

C. pi times r

D. pi times d

Answer 1

The height of sector is r

Explanation:

Given the circle of radius r

We have to find the height of the shape formed by the sectors.

As in figure shown circle is divided into 8 sectors gives the total perimeter 2πr units.

The height of sector is the line joining the center of circle to the circumference of sector which is the part of circle known as the radius of circle.

∴ Height of each sector will be equal to the radius "r" of the circle.

Answer 2

option (A) "r".

Explanation:

Length of the shape formed by the sectors is
`\pi r` which is half of the perimeter of the given circle, with the radius r.

Circle is divided in eight sectors and arranged horizontally as shown in the figure.

Therefore, height of each sector will be equal to the radius "r" of the circle.

Answer is option (A) "r".