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4 years ago

Please explain how to do this

Mathematics

1 answer:

user100 [1]4 years ago

7 0

Answer:

Option 4

Step-by-step explanation:

Area of a circle (A) = πr²-------------(i)

Circumference (C) = 2πr

=>C = 2πr

=> 2πr= C

=> π = C/2r

Substituting the value of π = C/2r in the first equation i.e (i)

A = (C×r²)/2r

= (C . r)/2

= 1/2 × C × r

Therefore, option 4 is the correct option

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A negative correlation means with increase in one quantity the other quantity decreases.

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