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KonstantinChe [14]
2 years ago
14

100 points. Find the surface area of the triangular prism. The unit is cm^2

Mathematics
2 answers:
nexus9112 [7]2 years ago
8 0

Answer:

1380

Step-by-step explanation:

nikklg [1K]2 years ago
6 0
First we find the area of the two triangles on each side (keep in mind that they are equal/congruent to each other):

(24*10)/2 = 120 cm^2

Then you find the areas of the three rectangles that are left:

24*19 = 456 cm^2
26*19 = 494 cm^2
10*19 = 190 cm^2

Finally, to find the surface area of the prism:

120+120+456+494+190 = 1,380 cm^2

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Answer:

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Step-by-step explanation:

The area (A) of a triangle using Heron's formula is

A = \sqrt{s(s-a)(s-b)(s-c)}

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s = \frac{a+b+c}{2} = \frac{4+4+1}{2} = \frac{9}{2} = 4.5

Then

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2 years ago
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Answer:

Step-by-step explanation:

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