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andrew-mc [135]
3 years ago
5

What is the surface area of a rectangular prism?length : 3width : 3height = 5

Mathematics
1 answer:
elixir [45]3 years ago
4 0
Since it is a rectangular prism, the front and back are the same. the sides are the same and the top and bottom are the same. You would find the area of the front and back first. Since they both have the same measurements, you can find the area of one of the faces and multiply by 2.
A=BH
A= 3x5
A=15
15x2=30
So the front and back's area is 30. Now you find the area of both sides. They are both rectangle so the formula is A=BH.
A=BH
A=3x5
A=15
15x2=30
Now you find the area of the top and bottom. It is also a rectangle so you will use the same formula.
A=BH
A=3x3
A=9
9x2=18
Finally, you add all these measurements together adn that is the surface area. 
This surface area of this rectangle prism is 78.
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Answer:  The required width of the park is 3 miles.

Step-by-step explanation:  Given that a 5 mile jogging path diagonal divides a rectangular park in half and the park is 4 miles long.

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As shown in the attached figure below, the diagonal BD divides the rectangle ABCD into two equal parts,

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Since each angle of a rectangle is right-angle, so triangle ABD will be a right-angled triangle.

Using Pythagoras theorem in triangle ABD, we have

BD^2=AB^2+DA^2\\\\\Rightarrow AB=\sqrt{BD^2-DA^2}\\\\\Rightarrow AB=\sqrt{5^2-4^2}\\\\\Rightarrow AB=\sqrt{25-16}\\\\\Rightarrow AB=\sqrt{9}\\\\\Rightarrow AB=3.

Thus, the required width of the park is 3 miles.

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3 years ago
A box shaped like a rectangular prism has a height of 4 feet, a length of 10 feet, and a width of 6 feet. The box is filled with
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8 0
3 years ago
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GUYS HELP! IS THIS CORRECT???<br> ILL MARK YOU BRAINIEST!
SashulF [63]

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Answer:

Laurie's maximum depth can be represented using the expressions :

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2 years ago
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So it's saying 5 + 12 equals to 17. 

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3 years ago
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