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I need steps for this

 

 Jan 13, 2024
 #1
avatar+128732 
+1

a  )    Diameter = 10      radius  =10 / 2  = 5

Area = pi * radius ^2  =  pi * 5^2   = 25 pi

 

b  )  Area of AOB   ....this is a right triangle with legs   AO =AB = 5

Area = (1/2) (prdict of the legs)  = (1/2) (5 * 5)  = 25 /2

 

c ) COD  has same area as AOB

 

d )   Area of shaded region  = area of  circle -[ AOB ] -[ COD =  25pi - 25/2 -25/2  = 25pi - 25 = 25 [ pi -1 ]

 

e ) AB  is the  hypotenuse of an isosceles right triangle....its length  =  leg length * sqrt (2)  = 

 

5sqrt (2)  ≈   7.1

 

cool cool cool

 Jan 13, 2024

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