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Nimfa-mama [501]
2 years ago
14

Find the area of the shaded regions. ANSWER IN PI FORM AND DO NOT I SAID DO NOT WRITE EXPLANATION

Mathematics
2 answers:
7nadin3 [17]2 years ago
8 0

Answer: 18π

okokok gg

Anvisha [2.4K]2 years ago
6 0

Step-by-step explanation:

Here angle is given in degree.We have convert it into radian.

{1}^{\circ}  =( { \frac{\pi}{180} } )^{c}  \\  \therefore \:  {80}^{\circ}  = ( \frac{80\pi}{180} ) ^{c}  =  {( \frac{4\pi}{9} })^{c}  \:  =  \theta ^{c}

  • radius r = 9 cm

Area of green shaded regions = A

\sf \: A =  \frac{1}{2}  { {r}^{2} }{ { \theta}^{ c} }  \\  =  \frac{1}{2}  \times  {9}^{2}  \times  \frac{4\pi}{9}  \\  = 18\pi \:  {cm}^{2}

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