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...

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...

amistre64 · Answer

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

amistre64 · Answer

make sure your calculator is set to degree for the 100

amistre64 · Answer

and then its just angle*radius/2

amistre64 · Answer

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

amistre64 · Answer

100 needs a pi soo

100pi
----- = radian measure
 180

amistre64 · Answer

area = angle r^2/2

amistre64 · Answer

I get 27.366...