3 years ago

Which choice best describes the angles st

Mathematics

1 answer:

Aleks04 [339]3 years ago

8 0

Supplementary because the add to 180°

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2 1/4 x 3 2/5<br> show all your work

monitta

Answer:

153/20

Step-by-step explanation:

I assume you're asking

$2 \frac{1}{4} \times 3 \frac{2}{5}$

$\frac{9}{4} \times \frac{17}{5}$

$\frac{153}{20}$

5 0

3 years ago

The area of a circle is 16pi cm2. What is the circle's circumstance?

gavmur [86]

I think you mean circumference...Area is $A= \pi r^{2}$ . We have the area so we need to use it to solve for the radius which we will then use in the circumference formula. $16 \pi = \pi r^{2}$ . Divide both sides by pi to get $\frac{16 \pi }{ \pi } = r^{2}$ . Of course the simplification of the left side gives us $16= r^{2}$ and r = 4. Now fill that in to the circumference formula, which is $C=2 \pi r$ , to get C $C=2 \pi (4)$ which is a circumference of $8 \pi$