Question

a circular path of radius 7cm a rectangular sheet of dimension to centimetre into 1cm is removed find the area of the remaining card
pls answer the 32 second sum in the following pic

Answer 1

Answer:

152 cm²

Step-by-step explanation:

radius of circle is 7cm

area of circular card = πr²

= 22/7* (7)²

= 22/7 * 7*7

= 22*7 = 154 cm²

area of rectangular sheet is 2*1 = 2 cm²

area of remaining part of circle = area of circular card - area of rectangular sheet

154 - 2 = 152 cm²

Answer 2

Answer:

152 cm²

Step-by-step explanation:

We know that Area of a circle = πr²

and area of a rectangle = ab

here is given that, r=7cm

a=2cm

b=1cm

so, area of the circular card = π×7² cm²

= (22/7)×7×7 cm²

= 154 cm²

area of the rectangular sheet = 2×1 cm² = 2cm²

So, the area of the remaining card = (154-2) cm²

= 152 cm²

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