4 years ago

What is the diameter and radius?

Mathematics

1 answer:

vesna_86 [32]4 years ago

8 0

Circumference C=2pi*r

But in question C=40pi

This implies that 2pi*r=40pi

This implies that r=20 in.

d=2*r=40 in.

Hope this helps :)

You might be interested in

Question of the day! Someone steals your N500. Same person owes you N100. So he uses the stolen N500 to pay you your N100, and y

maxonik [38]

Someone steals 500, your balance is -500
Same person gives you 100, your balance is -400
You give them the 400 change, your balance is -800

7 0

3 years ago

Read 2 more answers

Please help me its help.

IgorLugansk [536]

The answer will be 81.

Step-by-step explanation:

just multiple by 3

8 0

2 years ago

Read 2 more answers

I really need help with this Triangle problem.

julia-pushkina [17]

Answer:

x = 10

y = 20

Step-by-step explanation:

$\tan \: 30 \degree = \frac{x}{10 \sqrt{3} } \\ \\ \frac{1}{ \sqrt{3} } = \frac{x}{10 \sqrt{3} } \\ \\ \sqrt{3} x = 10 \sqrt{3} \\ \\ x = \frac{10 \sqrt{3} }{ \sqrt{3} } \\ \\ x = 10 \\ \\ \cos 30 \degree = \frac{10 \sqrt{3} }{y} \\ \\ \frac{ \sqrt{3} }{2} = \frac{10 \sqrt{3} }{y} \\ \\ y = 10 \sqrt{3} \times \frac{2}{ \sqrt{3} } \\ \\ y = 10 \times 2 \\ \\ y = 20$

4 0

3 years ago

I need help on dependent and independent events

strojnjashka [21]

In other words, the event has no effect on the probability of another event occurring. Independent events in probability are no different from independent events in real life. ... When two events are independent, one event does not influence the probability of another event.

7 0

3 years ago

Statement Reason m∠1 + m∠2 = 180° Angles 1 and 2 are supplementary angles. m∠2 + m∠3 = 180° Angles 2 and 3 are supplementary ang

mel-nik [20]

Angle 1 is congruent with angle3.

Good luck!!!

8 0

3 years ago

What is the diameter and radius?​

What is the diameter and radius?