Math, asked by mariya1707, 10 months ago

radius 5 cm is cut out from a square piece of an aluminium sheet of side 10cm what is the area of the left over and aluminium sheet take 3.14

Answers

Answered by simista

Answer:

$21.5 cm^2$

Step-by-step explanation:

Area of square - area of circle = area of left over sheet

$10^2-3.14(5^2)=100-3.14(25)\\=100-78.5\\=21.5 cm^2$

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mariya1707: Will u plzz tell from where the 25 came

mariya1707: ??

mariya1707: aacha mko smj aagya thankuuu so muchh

simista: radius squared

simista: So formula for circle is pi r^2

simista: = 3.14 (5^2)

simista: and 5x5=25

simista: that's where 25 came from

Answered by akankshatiwaribbk200

Answer:

21.5 cm^2 .

Step-by-step explanation:

Area of square - area of circle = area of left over sheet

10^2 -3.14(5^2) = 100 - 3.14(25)

= 100 - 78.5 = 21.5 cm^2 . Ans.

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