The perimeter of the shaded region is made up of an arc of a semicricle of radius 12 cm and the arcs of two semicricles of diameter 12cm. Find the perimeter and the area of the shaded region
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Step-by-step explanation:
A factor x-t for a polynomial would divide the polynomial leaving ZERO remainder.
Moreover, the factor theorem would solve this question easily. The factor theorem states that if x-t is a factor of P(x), then P(t)= 0. In other words t must be a root of the polynomial.
Thus, 125 – 75 + 5a - 10= 0
Solving for a is pretty simple. Then a= -8.
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Answer:
perimeter = 2 x 22/7 x r.
=2x22/7 x 12 =
75.42cm.
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