the area of a circle PQR with centre O is 72 cm square. what is the area of sector POQ if angle POQ is equal to 40 degree?

Answer 1

by PQR do you mean a sector? Generally circles are not described using three points.

Anyway, the area of a sector is

a = 1/2 r^2 θ

Answer 2

The area of a circle PQR with centre O is 72cmsquare.What is the area of sector PQR,if angle PQR=40degree

Answer 3

23cm

Answer 4

That is also my question
Who can solve it for me

Answer 5

72+6

Answer 6

40/360=
1/9
1/9*72
=8cm squared

Answer 7

Area of a sector=Angle÷ 360×π r×r
40÷360×22÷7×72×72
Pls continue from there

Answer 8

A=40/360×72
A=8cm²

Answer 9

Area of circle=72cm square
Acircle=3.142×rsquare
72=3.142×r square
r square=72\3.142
r square=22.91
SQUARE ROOT BOTH SIDES
Square root r square=square root 22.91
r=4.78~4.8
Asector=40/360×3.142×4.8 square
Asector=2895.6672/360
Asector=8.04352cm square~8cm square