Question

how many circles of a radius 7cm can be cut from a paper of length 50cm and width 32cm
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Answer 1

Answer:

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area of paper = L * W = 50*32 = 1600cm^2;

 

area of a circle = pi * r^2 = 22/7 * (7*7) = 22/7*49 = 22 * 7 = 154cm^2

surface area of paper/ surface area of circle = 1600/154 = 800/77 or 10.3896

but since we are only interested in complete circles, the answer is 10

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

radius = 7 cm

Diameter = 7x2 = 14 cm

in 50 cm length we can cut

50 ÷ 14 = 3.57 i.e. only 3 circle in a row.

in 32 cm wide we can cut

32 ÷ 14 = 2.28 i.e. only 2 circle in a column.

there we can cut total circle = 3x2 = 6