AREA OF SECTOR QUESTION7

Area of sector question7 :

Here we are going to see the solution of seventh question of the worksheet area of sector.

Question 7 :

Find the area of sector whose perimeter is 64 cm and radius is 14 cm

 Solution :Based on the given information, let us draw a rough diagramPerimeter of sector  =  64 cm   L + 2r = 64 -------(1)

Here r = 14 cm

L + 28 = 64

L = 64 - 28

L = 36 cm

Area of sector = (1/2) x L x r

= (1/2) x 36 x 14

= 18 x 14

= 252 cm²

Hence the area of  the required sector = 252 cm²

Area of sector worksheet - Practice questions

(1)  Find the area of sector whose perimeter is 78 cm and central angle is 45°

(2)  Find the area of sector whose perimeter is 64 cm and central angle is 60°

(3)  Find the area of sector whose perimeter is 92 cm and central angle is 36°

(4)  Find the area of sector whose perimeter is 43 cm and radius is 10.5 cm

(5)  Find the area of sector whose perimeter is 86 cm and radius is 21 cm

(6)  Find the area of sector whose perimeter is 56 cm and radius is 10 cm

(7)  Find the area of sector whose perimeter is 64 cm and radius is 14 cm

(8)  Find the area of sector whose perimeter is 45 cm and radius is 10 cm

(9)  Find the area of sector whose perimeter is 147 cm and radius is 35 cm

(10)  Find the area of sector whose length of arc is 21 cm and radius is 66 cm

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