Question

which of the following statements are true?
a. in any circle the ratio of radius to area is 1:
$\pi$
b. the radius and perimeter of a circle are scaled by same factor
c. the radius and area of a circle area scaled by same by same factor.
d.Area of a circle is proportional to its radius. the constant of proportionality is 3
$\pi$
e.perimeter is proportional to radius. the constant of proportionality is 2
$\pi$
f. If the radius is 1.5 then, the radio of square of radius to area.​

Answer 1

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