Answer:
≈ 471 cm^3
Step-by-step explanation:
V = πr^2h
V = 3.14·5^2·6
V = 3.14·25·6
V ≈ 471 cm^3
A = 73.84
Explanation-
14.2 - 6.4 = 7.8 (to get the length of the base without the top part)
7.8 • 5.2 = 40.56 (to find the area outside of our subtracted square that has the top part)
6.4 • 5.2 = 33.28 (to find the area of the inner square)
40.56 + 33.28 = 73.84 (adding together both parts to find the total area)
A = 73.84
The volume of the cone with the given parameters is calculated as approximately: 19.17 cubic units.
<h3>How to Find the Volume of a Cone?</h3>
Volume = 1/3πr²h
Given the following:
- Diameter = 4 units
- Radius (r) = diameter/2 = 4/2 = 2 units
- Slant height (l) = 5 units
- Height (h) = √(5² - 2²) = 4.58 units
Volume of the cone = 1/3π(2²)(4.58)
Volume of the cone = 19.17 cubic units.
Learn more about volume of a cone on:
brainly.com/question/13677400
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Answer:
Option 4
Step-by-step explanation:
Area of a trapezoid =
Here, and are the bases and 'h' is the height between the bases.
Area of the composite figure = Area of two trapezoids given
=
=
= 168 + 308
= 476 square ft
Option 4 is the answer.