We know,
Circumference of circle = 2πr
If the radius of a circle is increased to 3 times
Then,
Circumference of circle = 2π x 3r
= 3(2πr)
Therefore the circumference of the circle increased by 3 times.
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120 Mins English English20 Questions20 Marks15 Mins English English200 Questions200 Marks120 Mins EnglishTwo circular pizzas have radii in the ratio 2:3. If the smaller pizza has an area of 100π cm², what is the area of the larger pizza?
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