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forsale [732]
3 years ago
6

Find the circumference of the circle in terms of pi? [30]

Mathematics
2 answers:
son4ous [18]3 years ago
3 0

Answer:

60π

Step-by-step explanation:

If the circle has radius of 30 units, substitute r=30 into the formula C = 2πr.

C = 2π(30)

C = 60π

Nina [5.8K]3 years ago
3 0

To find the circumference of the circle shown here, let's start with writing the formula down.

Circumference = 2\pir

We have to divide 60 by 2 because the radius is always half the diameter. Now, we can plug in 30 for r in the formula.

Now we have

circumference = 2\pi30.

This equals 60\pi.

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For ΔABC, ∠A = 2x - 2, ∠B = 2x + 2, and ∠C = 5x. If ΔABC undergoes a dilation by a scale factor of 1 2 to create ΔA'B'C' with ∠A
Zolol [24]
<h3>Answer:</h3>

A) ∠A = ∠A' = 38° and ∠B = ∠B' = 42°

<h3>Explanation:</h3>

The sum of angles in ∆ABC is 180°, so ...

... (2x -2) + (2x +2) + (5x) = 180

... 9x = 180

... x = 20

and the angles of ∆ABC are ∠A = 38°, ∠B = 42°, ∠C = 100°.

___

The sum of angles of ∆A'B'C' is 180°, so ...

... (58 -x) +(3x -18) +(120 -x) = 180

... x +160 = 180

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and ∠A' = 38°, ∠B' = 42°, ∠C' = 100°.

_____

The values of angle measures of ∆ABC match those of ∆A'B'C', so we can conclude ...

... A) ∠A = ∠A' = 38° and ∠B = ∠B' = 42°

8 0
3 years ago
How many squares are in the 11 squares
Nadya [2.5K]

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11 Squares are there in 11 squares

7 0
3 years ago
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A car travels at an average speed of 56 miles per hour . how many miles does it travel in 4 hours and 15 minutes
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56 miles per hour

15 minutes is 1/4 of an hour

1/4 = 0.25

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4 0
3 years ago
Max has a brother who is four years twice his age. If their combined ages equal 37, how old is Max?
kherson [118]

M=33/3

M=Mark is 11

Brother: 2*11+4=22+4=26

Proof:

11+26=37

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Hope I helped! :3

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PLEASE HELP‼️Need now ❗️
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