Help Please! I have a few!

1. Find the measure of the complement to an 18 degrees angle.
2. Circle A has a radius of 21 meters. Circle B has a radius of 28 meters.
a. Find the circumference of each circle in terms of pi.
b. Is the relationship between the radius and circumference the same for all circles? Explain.

Question

Help Please! I have a few!

1. Find the measure of the complement to an 18 degrees angle. 
2. Circle A has a radius of 21 meters. Circle B has a radius of 28 meters. 
a. Find the circumference of each circle in terms of pi. 
b. Is the relationship between the radius and circumference the same for all circles? Explain.

Renne · Answer

The complementary angle of 18∘ is 72∘, which is obtained by subtracting 18∘ from 90∘.

Renne · Answer

The radius of a circle is equal to half of its diameter. In this case, the diameter is 28 cm, so the radius would be 14 cm (28 ÷ 2 = 14).

Renne · Answer

The area of the object is 1386 square centimeters.

Renne · Answer

Did you know that the circumference of a circle is directly proportional to its diameter? This relationship can be expressed mathematically as C = πd. Additionally, the circumference is also proportional to the radius, with the constant of proportionality being π as the diameter is twice the length of the radius.

Renne · Answer

I hope this helps!

Renne · Answer

@tbone  Am I correct?

Tbone · Answer

@renne wrote:

@tbone Am I correct?

I am sorry, fore I do not know diameter, radius, and anything measuring circles I didn't pay attempt to my humblest apologies

Renne · Answer

@tbone wrote:

@renne wrote:

@tbone Am I correct?

I am sorry, fore I do not know diameter, radius, and anything measuring circles I didn't pay attempt to my humblest apologies

It is okay. I can only hope for the best. I feel that I am pretty smart so I am sure I am correct.

Renne · Answer

@renne wrote:

The area of the object is 1386 square centimeters.

for A

Aries · Answer

Okay Thank you!

Renne · Answer

No problem!