1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ratling [72]
3 years ago
11

An equilateral triangle of side 14 centimeters is revolved about an altitude to form a cone. What is the number of cubic centime

ters in the volume of the cone?
Mathematics
1 answer:
Naddika [18.5K]3 years ago
4 0

First find the height of the triangle using the Pythagorean theorem:

Height = √(14^2 - 7^2)

Height = √(196 - 49)

Height = √147

Height = 7 √3

Now find the volume of the cone:

Volume = PI x r^2 x H/3

Volume = 3.14 x 7^2 x 7√3/3

Volume = 621.8177 cubic cm's.

Round the answer as needed.

You might be interested in
If Joe started his trip driving an average speed of 50 miles per hour, about how many hours would it take to travel 410 miles? I
Finger [1]

Answer:

8.2 hours

Step-by-step explanation:

Since Joe started his trip driving an average speed of 50 miles per hour, you would have to divide 410 and 50. You would get the answer of 8.2 hours

3 0
3 years ago
Name a decimal in between 0.4 and 0.5?
Luba_88 [7]
I think that 0.45 would be one.
8 0
2 years ago
HELP ASAP WILL MARK BRAINLIEST
zhenek [66]

Answer:

#2

Step-by-step explanation:

I did it and got it right hope you do too : )

7 0
3 years ago
In a race, 16 out of the 25 bicyclists finished in less than 51 minutes. What percent of bicyclists
Sholpan [36]
I think it’s 25x if not send the equation answers
3 0
2 years ago
Given a regular decagon, find the measures of the angles formed by (
Sonja [21]
A decagon has 10 sides (think decade and decathlon). From the center of the decagon we draw the radii and in doing so we take the area of the decagon and divide it into 10 congruent Triangles.

The angles around the center add up to 360 because they form a circle and since there are 10, they each measure 36 degrees. So the answer to the first part (the angle between the radii) is 36 degrees.

Each of these triangles has two equal sides (both radii) so is Isosceles. That means that the base angles are congruent. So the two angles that are left in each triangle must measure the same. Since the angles in a triangle add up to 180 degrees, we know that the two remaining angles are together equal to 180-36=144 degrees. Since they are equal in measure they each measure 72 degrees.

Thus the answer to the second part, trhe measure of the angle between a radius and the side of the polygon is 72 degrees.




3 0
3 years ago
Other questions:
  • two times Antonio's age plus three times Sarah's age equals 34. Sarah's age is also five times Antonio's age. how old is Sarah
    7·1 answer
  • What is the verbal expression of 3x-7
    13·1 answer
  • Find the value of each variable help fast
    9·1 answer
  • If a 12 pound turkey cost $24.98 what should 20 pounds cost
    13·1 answer
  • To solve e4 – 3x = (4/3)x + 9 by graphing, which equations should be graphed?
    13·2 answers
  • Solve the equation = 15 points<br><br>-2 = 3x/5 + 1​
    8·2 answers
  • In ΔJKL, l = 920 inches, j = 880 inches and ∠K=157°. Find the length of k, to the nearest inch.
    7·2 answers
  • What is the remainder of 3x³ - 2x² - 7x +6 divided by x+1? Is x+1 a factor of the polynomial?
    7·1 answer
  • Plz help me, and go step by step on how to do it plz
    6·2 answers
  • Convert to scientific notation.<br> 16,120
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!