find
the area
of the shaded region
:
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Step-by-step explanation:
answer of these questions
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Answer:
49(pi - 2) cm squared
Step-by-step explanation:
The angle subtended by the arc BC is 90 degrees.
The radius is half of the diameter, so the radius being 14cm.
Lets name the centre of the circle O. So now the triangle OBC has an area of 14 multiplied by 14 and then divided by two. That is 98 cm squared.
The area of the sector is given by the formula (pi × r to the power of two) × (x/360). The x is the angle subtended by the arc BC. So plugging all given info into this formula gives 49 pi cm squared.
So now subtracting the area of the triangle OBC from the sector OBC, gives 49(pi - 2) cm squared.
Not 100% sure though.
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