Home INT3 > Chapter 2 > Lesson 2.1.2 > Problem 2-20 2-20.
A 3-foot indoor children's slide must meet the ground very gradually and make an angle of 155º, as shown in the diagram at
right. What are the height of the slide (y) and the length of the floor it will cover (2)?
y
155°
Hint:
Review the trigonometric ratios from the Math Notes box in this lesson. Which angle represents "?" for those
equations?
3
у
155°
250
Hint:
r
In order to produce the correct value, the inside angle must be used. See the diagram.

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

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step-by-step explanation:

answer would be 8.64 or s = 11π/4 inches

step-by-step explanation:

s = r θ  

where s = arc length  

r = radius = 3 inches  

θ = central angle in radians = ( π /180)*165  

s = 3(π/180)*165  

= 8.64 inches