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Finger [1]
3 years ago
13

What is the volume of the cone?

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
4 0
Answer: C: 2787.64
Explanation: The height of the cone equals 22, the diameter of the circle is 22, divide it by 2 to get the radius which is 11. Then plug in data into formula: V=

Pi•radius squared• height
____________________

3
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Circle O and triangle OQR are shown below. What is the length of OQ?
zysi [14]

Answer:

Step-by-step explanation:

A circle is inscribed in an equilateral triangle PQR with centre O. If angle OQR = 30°, what is the perimeter of the triangle?

This is a circle inscribed in an equilateral triangle with side s.

If you are asking for the perimeter of PQR, it is 3s.

If you are asking for the perimeter of OQR, it is (3+23–√3)s

Since OR and SR are the hypotenuses of right triangles with adjacent side equal to ½ s, their length is ½s / cos 30° = (√3) /3.

(3/3)s + ((√3) /3)s + ((√3) /3)s = ((3 + 2√3)/3)s ≈ 2.1547s

Hope it helps

help me by marking as brainliest....

3 0
2 years ago
identify the postulate or theorem that proves the triangles congruent. AAS, SAA, ASA, The triangles cannot be proven congruent
nirvana33 [79]
AAS and SAA don't prove congruence. 
You can have two triangles that have AAS or SAA and are not congruent.

From this picture, these triangles are congruent by ASA .
4 0
3 years ago
the average of three numbers is x if the first number is y and the second number is z what is the third number
alex41 [277]
The third number will be 3x - y - z
8 0
3 years ago
Help please. <br><br> Please <br><br> Please
iragen [17]

2x - 6 = 60 - x  \\ add \: x \: to \:both \: sides \\  2x + x - 6 = 60 - x + x \\ 3x - 6 = 60 \\ add \: 6 \: to \: both \: sides \\ 3x - 6 + 6 = 60 + 6 \\ 3x = 66 \\ divide \: both \: sides \: by \: 3 \\  \frac{3x}{3}  =  \frac{66}{3}  \\ x = 22

8 0
3 years ago
Estimate a 10% tip on a bill of $158.71 by first rounding the bill amount to the nearest ten dollars.
irga5000 [103]

158.71 rounded to the nearest ten dollars would be $160.00

 then to estimate 10% since 10% starts with a 1, just remove the zero from both numbers

 so 160 becomes 16

 the tip would be $16

5 0
3 years ago
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