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alina1380 [7]
2 years ago
15

What is the circumference of this circle, in centimeters? Use 22/7 for Pi.

Mathematics
2 answers:
yan [13]2 years ago
8 0
It’s should be B if not i’m sorry
good luck
gtnhenbr [62]2 years ago
3 0

Answer: 66cm

Step-by-step explanation:

Diameter (d) = 21 cm

c= πd = 22/7 x 21 = 22 x 3 = 66cm

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The three angles of a triangle measure 2x – 6, 3x + 5, and 2x + 20. What is the measure of the smallest angle in degrees
Radda [10]

Answer:

Smallest angle = 40

Step-by-step explanation:

Angle sum property:Sum of all three angles of triangle is 180

2x - 6 + 3x + 5 + 2x + 20 = 180   {Combine like terms}

2x + 3x + 2x - 6 + 5 + 20 = 180

                     7x  + 19       = 180            {Subtract 19 from both sides}

                                  7x = 180 - 19

                                  7x = 161               {Divide both sides by 7}

                                    x = 161/7

x = 23

2x - 6 = 2*23 - 6 = 46 - 6 = 40

3x + 5 = 3*23 + 5 = 69 + 5 = 74

2x + 20 = 2*23 + 20 = 46 + 20 = 66

Smallest angle = 40

8 0
3 years ago
What is three and one third divided by two and one third
Mkey [24]
The correct answer is 10/7 or 1 3/7. Hope this helps.
3 0
3 years ago
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a woman at a point a on the shore of a circular lake with radius 1.2 mi wants to arrive at the point B diametrically opposite A
kenny6666 [7]

If she arrives by boat;

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So;

When moving on foot

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The distance that needs to be moved D = π × 2 miles = 2π Miles

Arc length = Radius × θ

String length = radius x 2 x sin (θ / 2)

0 ≤ θ ≤ π, 0 ≤ sin (θ / 2) ≤ 1

Learn more here shore of a circular at

brainly.com/question/16597466

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igomit [66]

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(-4, -1)

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3 years ago
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