Question

On decreasing the radius of a circle by 30 %, its area is decreased by

Answer 1

If you like make it brainliest answer

Step-by-step explanation:

Answer 2

Decrease area = First area - last area

= pie r ^2 - pie R^2

=pie (100/100)^2- pie (70/100)^2

= 1 - 0.49

=.51

area is decreased by =51%

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