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3 years ago

Please explain how to do this

Mathematics

1 answer:

user100 [1]3 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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3 years ago

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2 years ago

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2 years ago

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Ann [662]

Answer:

The answer is "Option C"

Step-by-step explanation:

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→ n = compounded value

In choice a:

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7 0

2 years ago

Read 2 more answers