SOLUTION: a circle a diameter 28 cm with a sector subtending an angle of 75 at the centre. Find the area of the shaded region

Click here to see ALL problems on Surface-area

Question 1155544: a circle a diameter 28 cm with a sector subtending an angle of 75 at the centre. Find the area of the shaded region
Found 3 solutions by mananth, MathTherapy, ikleyn:
Answer by mananth(16949)   (Show Source):
You can put this solution on YOUR website!

.

= 32.07 cm^2

Answer by MathTherapy(10748)   (Show Source):
You can put this solution on YOUR website!
a circle a diameter 28 cm with a sector subtending an angle of 75 at the centre. Find the area of the shaded region

That area is WRONG!
It's NOT 32.07 cm^2.
You need to be VERY CAREFUL when it comes to ACCEPTING answers from certain individuals in this forum!
Some make MANY, MANY, MANY errors, so you may need to do your problems on your own, or only accept answers from a REPUTABLE, and somewhat "stable" individual in this forum!

Answer by ikleyn(53646)   (Show Source):
You can put this solution on YOUR website!
.
a circle a diameter 28 cm with a sector subtending an angle of 75
at the centre. Find the area of the shaded region
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

        Calculations in the post by @mananth are incorrect.
        Below see my correct solution.

Area of sector =

Area = = 128.28 cm^2, approximately.