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Artist 52 [7]
3 years ago
9

Find the measure of x, then find the measure of each angle​

Mathematics
1 answer:
stepladder [879]3 years ago
7 0

First, you have to imagine that you cut the upper triangle. If you do that, then this is how the inner angles are added to 180°:

180° = 90° + (x/2) + (7x - 90°)

180° = x/2 + 7x

180° = x *(1/2 + 7)

180° = x*(15/2)

2/15 * 180° = x

24 = x

Angle A:

A= x/2

A = 24/2

A = 12°

Angle B:

B = 7x

B = 7*24

B = 168°

The two bottom angles are both worth 90°.

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A deer can run for 2 hours at the speed of 45 mph how far can It run in that time​
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If the diameter is 9 inches, then C = 28.26 inches = pi (9 inches).  Divide 28.26 inches by 9 inches.  Note that you MUST round off the ratio (pi) that you obtain, since 28.26 has 4 significant figures and 9 has just one.

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6 0
3 years ago
a 12-ft ladder leans against a building so that the angle between the ground and the ladder is 74°. how high does the ladder rea
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Answer:

12 feet

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Sometimes, a simple drawing is a great way to start! In the attached drawing, the red line represents the ladder, the brown represents the ground, and the black represents the building!

We want to find the side of the triangle from where the ladder meets the building to where the building meets the ground. This can be found using trigonometric identities, namely sine:

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Round to the nearest foot:

x=12ft

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2 years ago
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