Question

Two Circles of radius 7 cm is cut out from a Square piece of an Aluminum sheet of side 30 cm. What is the area of the leftover aluminum sheet?

Answer 1

Side of the square = 30cm

Are of the square = S²

=30²

= 900cm²

Radius of the circle cut of = 7cm

Area of the piece cut off = πr²

=22/7 x 7 x 7

= 154cm²

The area of the remaining aluminium

=900cm² - 154cm²

= 746cm²

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Answer 2

Answer:

646cm²

Step-by-step explanation:

Side of the square = 30cm

Area of the square = S²  =30²

                                 = 900cm²

Radius of the circle cut of = 7cm

Area of the piece cut off = πr²  =22/7 x 7 x 7  = 154cm²

The area of the remaining aluminum  =900cm² - 154cm²

                                                              = 646cm²

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