Register
BAC is a sector of a circle, radius 20 cm, whose centre is at A. Angle BAC = 43º. Calculate the area of the sector BAC
31.9k views
22 votes
BAC is a sector of a circle, radius 20 cm, whose centre is at A.

Angle BAC = 43º.
Calculate the area of the sector BAC

User Yassir Irfan
by
7.2k points

1 Answer

5 votes
The area of the circle is pi*r^2 or 400pi.

The sector fills up 43/360 of the circle since there are 360 degrees in a full circle.

Multiply this fraction by the full area to get the area of the sector:

400pi*(43/360)=47.78pi cm^2
User Queens
by
7.0k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

7.2m questions

9.5m answers

Other Questions

How do you estimate of 4 5/8 X 1/3
Please solve the following equation. x-6x=56
whats the most accurate estimation of 65+77
Find the additive inverse of 18/23
What is 25% of 500.00
Link Copied!