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3 years ago

3. What is the radius of a circle whose area is 64π cm squared?

Mathematics

1 answer:

nataly862011 [7]3 years ago

8 0

Answer:

Area = 64π

Area \: = \pi {r}^{2}Area=πr

64 \: \pi \: = \pi {r}^{2}64π=πr

{r}^{2} = \dfrac{64\pi}{\pi}r

64π

{r}^{2} = 64r

=64

r \: = \: \sqrt{64} = 8r=

Radius = 8 units

Finding the Diameter -

Diameter = Radius x 2 = 8 x 2 = 16 .

\bold{Diameter \: is \: 16 \: units}Diameteris16units

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julia-pushkina [17]

Answer with Step-by-step explanation:

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Using Lagrange multipliers

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