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Alecsey [184]
3 years ago
6

Please help geometry​ questions find X

Mathematics
1 answer:
ladessa [460]3 years ago
5 0

Answer:

D

Step-by-step explanation:

The line x originates from the center of the circle and forms a perpendicular line with line RS, which means that the line is bisected.

That means that line RT is half of line RS, or 7.

Then we can use the Pythagorean Theorem to find the measure of x.

7^2+b^2=9^2

49+b^2=81

b^2=32

b = √32

b ≈ 5.66

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Find the surface area of the prism.
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Answer:

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Step-by-step explanation:

The surface area of the given triangular prism is made up of:

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Area of the <u>triangle</u> = 1/2 × base × height

                                 = 1/2 × 6 × 4

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Area of the <u>side rectangle</u> = width × length

                                            = 2 × 5

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Area of the <u>base rectangle</u> = width × length

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                                             = 12 yd²

<u>Total Surface Area</u> = 2 triangles + 2 side rectangles + base rectangle

                               = 2(12) + 2(10) + 12

                               = 24 + 20 + 12

                               = 44 + 12

                               = 56 yd²

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