Saved Bookmarks
| 1. |
Find the length of the radius of a circular sector with an area of 1309 square meters and measure its central angle of 240 degrees, to the nearest meter |
|
Answer» Step-by-step explanation: We have, Let the RADIUS of CIRCLE r=4cm. Angle θ=30 o
Area of SECTOR of circle = 360 o
θ
×πr 2
= 360 o
30 o
×π×4×4 = 12 π
×16 = 3 4π
= 3 4
×3.14 =4.186cm 2
Area of major sector = Area of circle-area of minor sector =πr 2 −4.186 =3.14×4×4−4.186 =3.14×16−4.186 =50.24cm. 2
Hence, this is the ANSWER. |
|