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tia_tia [17]
3 years ago
10

How many vertices does a polyhedron have with 5 faces 3 rectangles and two triangles​

Mathematics
1 answer:
steposvetlana [31]3 years ago
4 0

Answer:

It has six vertices.

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Find the cos A and tan B to four decimal places. URGENT
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cos A is 0.8511 and tan B is 1.6

Step-by-step explanation:

Find the 3rd length or the hypotenuse.

<u>Pythagoras theorem</u>

hypotenuse^{2} = adjacent^{2} + opposite^{2}

hypotenuse^{2} = 8^{2} + 5^{2}

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<u>Formula:</u>

Cos (Angle) = \frac{adjacent}{hypotenuse}

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Cos A = 0.8511

A = cos^{-1} (0.8511)

A = 31.7°

b) Tan B

<u>Data: </u>

Opposite = 8

Adjacent = 5

<u>Formula:</u>

Tan (Angle) = \frac{opposite}{adjacent}

Tan B = \frac{8}{5}

Tan B = 1.6

B =  cos^{-1} (1.6)

B = 58°

Therefore, cos A is 0.8511 and tan B is 1.6.

Keyword: cos, tan

Learn more about cos at

  • brainly.com/question/5013374
  • brainly.com/question/9532142

#LearnwithBrainly

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