Question

Find the area of a sector with a central angle of 100° and a diameter of 5.6 cm. Round to the nearest tenth.
A) 27.4 cm2
B) 3.1 cm2
C) 1.2 cm2
D) 6.8 cm2

I must be doing something wrong...

Answer 1

teh sector is the pie shape of the arc left over?

Answer 2

make sure your calculator is set to degree for the 100

Answer 3

and then its just angle*radius/2

Answer 4

well; i spose youneed to swap degrees into radians ...

Answer 5

100 needs a pi soo

100pi
----- = radian measure
180

Answer 6

area = angle r^2/2

Answer 7

I get 27.366...