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galben [10]
3 years ago
12

Find the surface area of the rectangle prism. 3cm 9cm and 6cm

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
6 0

Answer:

198 cm²

Step-by-step explanation:

We are given the dimensions of a rectangular prism;

3cm 9cm and 6cm

We are required to determine its surface area;

We need to know that;

Surface area of a rectangular prism is given by;

A = 2(WL+HL+WH)

Where L, W and H are length , width and height respectively;

Assuming;

Width is 3 cm

Length is 9 cm, and

Height is 6 cm

Then;

Area = 2 ( (3×9) + (6×9) + (3×6))

        = 2(99)

       = 198 cm²

Therefore, the area of the rectangular prism is 198 cm²

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Step-by-step explanation:

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A triangle has side lengths of (5k - 7) centimeters, (k - 4) centimeters, and
Yuki888 [10]

Answer:

-6m and -6k

Step-by-step explanation:

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2 years ago
Find the surface area of the equilateral triangular prism below.
velikii [3]

Answer:

Area of a triangle = bh/2

Area of a rectangle = bh

The area of the triangles are the same, the area of the rectangles are the same.

triangle: 9x8/2

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2 years ago
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3 years ago
Read 2 more answers
The 2 in the middle is the one that I needed help <br> Please
r-ruslan [8.4K]

Answer:

The equation is p=34a+12, and a=7

Step-by-step explanation:

Perimeter is all of the sides added together

p=12a+6a+8+6a+8+10a-4

Combine like-terms

p=34a+12

Solve for a by making p equal to 250

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Subtract 12 from both sides

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Divide both sides by 34

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3 years ago
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