3 years ago

What is the exact area of a circle having diameter 4in

1 answer:

4 0

The diameter of a circle is calculated by using the formula D=r2pi so plug in the known values to find r=2/pi. Next plug r into the area of a circle formula(A=r^2pi) do so and get 4/pi

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WARRIOR [948]

The rule states that

$(a^b)^c = a^{bc}$

So, in your case, you have

$(9^{\frac{1}{2}})^2=9^{\frac{1}{2}\cdot 2}=9^1=9$

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2 years ago

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Iteru [2.4K]

Answer:

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Step-by-step explanation:

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2 years ago

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grigory [225]

Answer:

5:4

Step-by-step explanation:

If point B divides the segment AC in the ratio 2:1, then

AB=2x units and BC=x units.

If point D divides the segment AB in the ratio 3:2, then

AD=3y units and DB=2y units.

Since AD+DB=AB, then

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Now,

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So,

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