3 years ago

A candy bar box is in the shape of a triangular prism. The volume of the box is 3,240 cubic centimeters.

Mathematics

1 answer:

valentinak56 [21]3 years ago

4 0

Answer:

Step-by-step explanation:

CSA×2+perimeter of CSA

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3 years ago

A person standing d=145 centimeters from a mirror notices that the angle of depression from his eyes to the bottom of the mirror

Serggg [28]

The length of the mirror is 64.52 cm

<u>Explanation:</u>

Given:

Distance of the person from the mirror = 145cm

Angle of depression = 14°

Angle of elevation = 11°

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For angle of elevation:

$tan(11) = \frac{AB}{BO}\\ \\0.195 = \frac{AB}{145} \\\\AB = 28.275 cm$

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$tan(14) = \frac{BC}{BO} \\\\0.25 = \frac{BC}{145} \\\\BC = 36.25 cm$

Total length of the mirror, AC = AB + BC

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Therefore, the length of the mirror is 64.52 cm

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4 years ago