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Shtirlitz [24]
3 years ago
12

osha requires a ladder to meet the ground at 75 degree angle in order to function as safely as possible. of you need the ladder

to reach a ledge 20 feet up a vertical wall, how long does the ladder need to be?
Mathematics
1 answer:
VMariaS [17]3 years ago
8 0
Draw a right triangle with a right angle and a 75 deg angle at the bottom.
The hypotenuse is the length of the ladder.

sin A = opp/hyp

sin 75 = 20/hyp

hyp = 20/sin 75 = 20.7

Answer: 20.7 ft
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The angles of a triangle are described as follows: angle a is the largest angle; it measure is twice the measure of Angle b. The
nikklg [1K]

Answer:

Angle A = 102°

Angle B = 51°

Angle C = 27°

Step-by-step explanation:

angle A = 2b

angle B = b

angle C = 1/3 b + 10

Angle A + Angle B + Angle C = 180

2b + b + 1/3 b + 10 = 180

3 1/3 b + 10 = 180

10/3 b = 170

b = 51

a = 2b = 102

c = 1/3 b + 10 = 1/3 (51) + 10 = 17 + 10 = 27

4 0
3 years ago
the direction angle for vectors 135° the X component of the vector is -3 what is the Ywhat is what what is the Y component of th
blagie [28]
Well, the X component (assuming x is the horizontal) is equal to RCosZ

Where Z is the angle and R is the size of the resultant

Substitute into formula :

X component = RcosZ
-3 = Rcos135°
R = -3/cos135°
R = 4.24264...
R = 4.24 (2dp)

The vertical component (or Y component) is equal to RSinZ

Vertical component = RSinZ
= 4.24264... × Sin135°
= 3

The answer is 3

Please feel free to ask any questions you have
3 0
3 years ago
What are the lengths of the other two sides of the triangle?
9966 [12]
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6 0
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frez [133]

Answer: A.

Step-by-step explanation:

Equation: V=lwh

5 × 10 × 15 = 750 cubic cm

4 0
3 years ago
If you have 382 blocks that cost 44$ how much would it cost for 1 block​
makvit [3.9K]

Answer:

Im pretty sure the answer in $8.70

Step-by-step explanation:

All you have to do is 382 divided by 44

7 0
3 years ago
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