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Montano1993 [528]
2 years ago
9

Find the surface area of this triangular prism

Mathematics
2 answers:
lidiya [134]2 years ago
6 0

Answer:

To find the area of a triangle, multiply the base by the height, and then divide by 2. The division by 2 comes from the fact that a parallelogram can be divided into 2 triangles. For example, in the diagram to the left, the area of each triangle is equal to one-half the area of the parallelogram.

this will show u i searched it and wrote half in my words

Aleks [24]2 years ago
3 0

Answer:

315 in^2

Step-by-step explanation:

Triangles

Area of the two triangular faces.

Area = 1/2 * h * b

h = 7 in

b = 11 in

Area = 1/2 * 7 * 11

Area = 1/2 * 77

Area = 38.5

But there are 2 faces

Area = 38.5 * 2

Area = 77 in^2

Area Left Face

Area left face = height * width

Area left face = 14 * 8

Area left face = 112 in^2

Area Right face

Area Right face = w*h

w = 9

h = 14

Area = w*h

Area right face = 126 in^2

Total Area

Total Area = 126 + 112 + 77

Total Area = 315 in^2

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Answer:

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<em>X=</em><em>4</em>

<em>Now</em><em>,</em>

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3 years ago
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How do you solve 5x-2y= 18 and -5x+3y= -22 by solving a system of linear equations by elimination? Please add the steps in which
MaRussiya [10]
Write the 2 equations:

5x-2y=18
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You can see that the coefficients of x are opposites, so you can add them(the 2 equations) to eliminate x.

Adding them, you get:

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So now that you know y, you can substitute the value of y into one of the original equations. Let's substitute it in the first one:

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3 years ago
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Answer:

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Step-by-step explanation:

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