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babunello [35]
3 years ago
8

Workout the circumstance of a circle with radius 9 cm take π to be 3.142 to 1 decimal place​

Mathematics
1 answer:
Goryan [66]3 years ago
5 0

Answer:

C = 56.6 cm

Step-by-step explanation:

The circumference of a circle is

C = 2 * pi *r

C = 2 * 3.142 * 9

C =56.556

Rounded to 1 decimal place

C = 56.6 cm

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Write a + - x or ÷ sign in each box to make the equation true <br><br> 7 18 45 3 2 = 139
irina [24]
I mean, I don't know how to explain a generic way to solve this. Ask me about the specific train of thought if you are interested:

7 * 18 + 45 / 3 - 2 = 139
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4 years ago
Determine the missing side length:
musickatia [10]

Answer:

The missing side length is 3 units long.

Step-by-step explanation:

Use the Pythagorean Theorem where c²=a²+b²,

c=2√3, c²=12

a²=√3, a²=3

Solving for the missing side yields a side length of 3.

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4 years ago
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3 years ago
In the equation below, what is the coefficient of the variable 24=7x
dybincka [34]
The coefficient is the one the variable, in this case x, is multiplied by. The equation is 24 equals seven times x and therefore the coefficient is 7. Hope this helped!
5 0
4 years ago
Read 2 more answers
Can someone help me solve this question? I'd appreciate it! Thank you.
sveticcg [70]

Step-by-step explanation:

Side a = 63

Side b = 21

Side c = 66.40783 = 21√10

Angle ∠A = 71.565° = 71°33'54" = 1.24905 rad

Angle ∠B = 18.435° = 18°26'6" = 0.32175 rad

Angle ∠C = 90° = 1.5708 rad = π/2Area = 661.5

Perimeter p = 150.40783

Semiperimeter s = 75.20392

Height ha = 21  

Height hb = 63

Height hc = 19.92235

Median ma = 37.85829  

Median mb = 63.86901

Median mc = 33.20392

Inradius r = 8.79608  

Circumradius R = 33.20392  

Vertex coordinates: A[0, 0] B[66.40783, 0] C[6.64078, 19.92235]

Centroid: [24.34954, 6.64078]

Inscribed Circle Center: [12.20392, 8.79608]

Circumscribed Circle Center: [33.20392, 0]

7 0
3 years ago
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