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navik [9.2K]
2 years ago
12

The net of a triangular prism is shown.

Mathematics
2 answers:
Stella [2.4K]2 years ago
7 0
Its C. 48 in2
Explanation:
The formula for the area for a rectangle is length x width.
The formula for the area of a triangle is
Base x height divided by 2

The net given is a flattened out version of a triangular prism.
A net is usually given when ur finding the surface area of a 3d figure since it is more easier. Surface area is just adding up all the area of the faces that make up the figure.

Ima just sum it up all for you:
The area of the BOTH triangles is 6 in2
The area of the square on the left is 9 in2
Area of the rectangle at the center is 12 in2
Area of the rectangle on the right is 15 in2

Add up 6 + 6 + 9 + 12 + 15 = 48

HAVE A NICE DAY (and please mark me BRAINLIEST tysm)
FrozenT [24]2 years ago
4 0

Answer:

I’m pretty sure 60 or 56

Step-by-step explanation:

12+12+12+14+16 should be each square/shape I wrong so I’m so sorry I really hope I helped I think my equation is wrong but I hope my answer isn’t

You might be interested in
I need to use the Pythagorean Theorem to find X. I don’t know how to do that!!
frutty [35]

Answer:

17) x=8

18) x=\sqrt{189} or x= 3\sqrt{21}

Step-by-step explanation:

So the rule is a^{2} +b^{2} =c^{2}, "c" being the hypothenuse, or the long line that is opposite to the right angle.

17) We know that both values of x are equal to each other, which makes everything 10x easier!

                                               x^{2} +x^{2} =(8\sqrt{2})  ^{2}

(by the way we know the x values are our a and b values because they are legs! the way I like to remember the legs is that they are connected to the right angle box, and therefore support the hypothenuse)

<em>simplify</em> (╥︣﹏╥)    

                                                2x^2=8^2(\sqrt{2} )^{2}  

                                                  2x^2=64(2)

                                                   2x^2=128    

                                                  x^{2}= 128/2  

                                                     x^{2} =64

                                                        x=8      

18) Just pretend that the flipped triangle doesn't exist. It's parallel to the other triangle with values on it, and basically servers no purpose other than being parallel to the sister triangle :)

Anyways, since we know the hypothenuse (15) but we don't know one of our leg values (x), we're going to change our equation a bit!

                                                    c^{2} - b^{2} = a^{2}

It doesn't matter if you put the one leg value in a or b, just as long as you stick to that same equation you started with the entire time!

                                                   15^{2} -6^{2} =x^{2}

                                                   225-36=x^{2}  

                                                     x^{2} =189

                                               x=\sqrt{189}=3\sqrt{21}

        The more you do these, the easier they'll get, so don't worry!

                           

4 0
3 years ago
The cost of a train ticket increases by
erastova [34]

It costs $122.4 dollars before the increase.

<h3>How to calculate percentage of a number. Use the percentage formula: P% * X = Y</h3>
  • Convert the problem to an equation using the percentage formula: P% * X = Y.
  • P is 17%, X is 7.20, so the equation is 17% * 7.20 = Y.
  • Convert 10% to a decimal by removing the percent sign and dividing by 100: 10/100 = 0.10.

Therefore, It costs $122.4 dollars before the increase.

Learn more about Finding the Percentage here:

brainly.com/question/24862040

6 0
2 years ago
En la biblioteca hay 400 libros. Si el 25% son de matemáticas. Cuantos libros de matemáticas hay?
Romashka [77]

Answer:

100.

Step-by-step explanation:

25%*400

=100

¡Espero que esto haya ayudado!

3 0
3 years ago
PLEASE 10 PTS!!
ira [324]
Its c because first 14 he got -42 the four remaining he got 8=-34
6 0
3 years ago
Read 2 more answers
25. Find the area of the trapezoid. Leave your answer in simplest radical form. The figure is not drawn to scale.
n200080 [17]

Answer:

Option D. 44\ cm^{2}

Step-by-step explanation:

we know that

The area of a trapezoid is equal to

A=\frac{1}{2}[b1+b2]h

we have

b1=8\ cm

b2=(4+8+2)=14\ cm

h=4\ cm

substitute the values

A=\frac{1}{2}[8+14](4)=44\ cm^{2}

6 0
3 years ago
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