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Llana [10]
3 years ago
15

Free easy points~ Find the surface area of this triangular prism.

Mathematics
2 answers:
djverab [1.8K]3 years ago
6 0

Surface area is the sum of area of all surfaces.

In the given diagram , we have two identical triangles , with height = 20 cm and base = 25 cm. Area of triangle = (1/2)*base * height.

So for the given triangle , area = 2*(1/2)*20*25 = 500 cm square .

We have a bottom rectangle whose area is 25*40 = 1000 cm square. A sideby rectangle, whose area is 35*40= 1400 cm square and a backwards rectangle, whose area is 20*40 = 800 cm square.

So the surface area = 500+1000+1400+800 =3700 cm square.

Anni [7]3 years ago
4 0

Answer:

3700 cm

Step-by-step explanation:

To find surface area, you find all the areas of each side.

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Step-by-step explanation:

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5 0
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The figure shows a gas tank in the form of a rectangular prism that is 40% full. How many more gallons of gas will it take to fi
Ira Lisetskai [31]

Answer:

10.8 gallons

Step-by-step explanation:

First change everything to inches:

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7 0
3 years ago
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6 0
3 years ago
Need help with this question please help
Bess [88]
If you look closely the area where 3x is congruent to the other side of the 90 degree angle with one part as 0.5x + 34

So
3x + 0.5x + 34= 90

x will be 16

So plug it in

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And


3(16)= 48 degrees

That left half of the circle is 180 degrees and since we know the angle 3x is 48 degrees we subtract it from 180 to get angle AE


180-48

132 degrees is your answer

7 0
3 years ago
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