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ivann1987 [24]
2 years ago
12

Surface area and volume of cone

Mathematics
1 answer:
faust18 [17]2 years ago
8 0

The surface area and the volume of the cone is 816.4 km² and 7536 km³ respectively.

<h3>What is volume?</h3>

Volume is the capacity of an object.

To calculate the surface area and volume of the cone shown above, we use equation 1 and equation 2 respectively.

Formula:

  • S = πr√(r²+h²)............. Equation 1
  • V = πr²h.................. Equation 2

Where:

  • S = Surface area of the cone
  • V = Volume of the cone
  • r = Radius of the base of thye cone
  • h = Vertical height of the cone.

From the diagram,

Given:

  • r = 10 km
  • h = 24 km
  • π = 3.14

Substitute these values into equation 1 and equation 2 respectively.

  • S = 3.14×10[√(24²+10²)
  • S = 31.4(√676)
  • S = 31.4×26
  • S = 816.4 km²

Also for the volume of tyhe cone

  • V = 3.14×10²×24
  • V = 7536 km³

Hence, The surface area and the volume of the cone is 816.4 km² and 7536 km³ respectively.

Learn more about volume here: brainly.com/question/1972490

#SPJ1

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Answer:

m = 13

Step-by-step explanation:

To isolate the variable, you undo what is being done to it. Here, we have the variable being multiplied by 7, hence, we divide both sides by 7 and the result is the variable isolated and solved.

1. 7m = 91

2. (7m)/7 = 91/7

3. m = 13

Hope this helps! (Please consider giving brainliest)

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3 years ago
Colton earns $7 per hour plus $1.50 for each pizza delivery. The expression 7h + 1.50d can be used to find the total earings aft
Rina8888 [55]
Since the expression 7h + 1.50d can be used to find the total earnings. We just need to substitute the given data to the expression to solve the problem.

7(15) + 1.50(8)
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4 years ago
Find the integer values of x that satisfy both of these inequalities.
Shtirlitz [24]

Answer:

0, 1, 2.

Step-by-step explanation:

5 - 3x <= 7

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4x + 1 < 13

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So the integer values satisfying the inequalities are>

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6 0
3 years ago
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Find the equation of a circle with a center at (7, 2) and a point on the circle at (-2, -5).
KatRina [158]

Answer:

(x-7)^2 + (y-2) ^2 = 130

Step-by-step explanation:

We need to find the length of the radius

the length of the radius is found by using the distance formula

r = sqrt(  ( -2-7)^2+( -5 -2)^2)

    sqrt(  ( -9)^2+( -7)^2)

    sqrt( 81+49)

    sqrt(130)

The formula for a circle is

(x-h)^2 + (y-h) ^2 = r^2

where (h,k) is the center and r is the radius

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3 years ago
Which of the following can be sides of a triangle
sveticcg [70]

Answer:

See below

Step-by-step explanation:

Fact: The sum of two shortest sides must be greater than the longest side.

1.    6, 10, 8;   6 + 8 = 14; 14 > 10; This is a triangle.

2.  46, 24, 21;  24 + 21 = 45; 45 < 46;  This is not a triangle.

3.  23, 35, 10;   23 + 10 = 33; 33 < 35;  This is not a triangle.

4.  8, 9, 17;        8 + 9 = 17; 17= 17; This is not a triangle.

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