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ICE Princess25 [194]
3 years ago
14

Which expression can be used to find the surface area of the following square pyramid? I DONT KNOW HOW TO PUT A PHOTO ON PC!!! b

ut it has 4 as the base and 3 as the height PLEASE HELP
Mathematics
1 answer:
chubhunter [2.5K]3 years ago
7 0

Answer:

40 or 16+6+6+6+6

Step-by-step explanation:

To find the surface area of a 3d figure, we can imagine all of its faces laid down on a flat plane. In this case, we would have a square, and four congruent triangles. Now all we have to do is find the areas of each shape and add them up.

4 is the base of the pyramid, so it's also the square's side length. Since a square has four equal sides, our square's length and width are both 4.

4*4 = 16

For every triangle we have, the base is 4 and the height is 3. The area of a triangle can be found using the formula A=(bh)/2. We plug in the values:

A = (4*3)/2

A = (12)/2

A = 6

Since we have 4 triangles, the surface area is:

16+6+6+6+6 = 40

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The another way to represent the same line, for solving y will be:  y= 5-\frac{2}{3}x

<u><em>Explanation</em></u>

Given equation of the line is:  2x+3y=15

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First we will <u>subtract 2x </u>from both sides. So, we will get......

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The equation that represents the relationship between the number of liters, x, and the number of liquid pints, y is y = 2.11x

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The attached table of values represents the missing piece in the question.

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