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IRINA_888 [86]
3 years ago
6

A glass triangular prism for a telescope is 5.5 inches long. Each side of the prism's triangular bases is 4 inches long and 3 in

ches high. How much glass covers the surface of the prism?
The answer choices are: 75, 76, 77, and 78. This is due tomorrow morning, please help
Mathematics
1 answer:
fiasKO [112]3 years ago
3 0

Answer:

78 square inches

Step-by-step explanation:

It is given that the length of the glass triangular prism for a telescope=5.5 inches, sides of the triangular prism = 4 inches and height =3 inches.

Thus, Surface area of the triangular prism =bh+(s_{1}+ s_{2}+s_{3})H where H is the length of the triangular prism.

SA=(4)(3)+(4+4+4)(5.5)

=12+12(5.5)

=78 square inches.

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