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Semmy [17]
2 years ago
8

If a circle has a diameter of 21 inches, what is the circumference? (Use 22/7 for π.)

Mathematics
2 answers:
Marat540 [252]2 years ago
8 0
The answer is 66 hope this helps!! Have a great dayyyy!!
cricket20 [7]2 years ago
6 0

Answer: 66 is the circumference

Step-by-step explanation: Formula of circumference: 2 times pi times R

R is radius and Diameter is 2 times of R. Formula of circumference can also be: pi times R. 22/7 times 21 is 66.

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BC is tangent to circle A at B and to circle D at C. AB= 10 BC= 21 DC= 8 find AD to the nearest tenth
Andrei [34K]
The attached diagram is an interpretation of the question.
If there are other details, please post.

The distance AD is found by Pythagoras theorem, with 
AD=sqrt(BC^2+(AB-DC)^2)=sqrt(21^2+2^2)=sqrt(441+4)=sqrt(445)
=21.095 (to the third decimal place)

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3 years ago
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HELP! BRAINLIEST ANSWER!
topjm [15]

Answer:

6. 5x - 2

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7 0
2 years ago
Split 18 into the ratio 1:2<br>​
Eva8 [605]

Answer:

6:12

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8 0
2 years ago
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hodyreva [135]
In this case, h(x) = sqrt(x) + 3

A. f(x)=x+3; g(x)=√x 
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8 0
3 years ago
Read 2 more answers
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