Answer:
24 68 89
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Given</u>
- Rectangle with sides of 20 in and x+2 in and perimeter of 68 in
<u>Perimeter = 2(l + w)</u>
- l = 20 in, w = x + 2 in, P = 68 in
<u>Substitute values in perimeter formula</u>
- 68 = 2(20 + x + 2)
- 34 = x + 22
- x = 34 - 22
- x = 12 in
<u>Then, the value of width is</u>
<u>Area of rectangle</u>
<u>Area of circle</u>
- A = πr² = 3.14*7² = 153.86
<u>Shaded area </u>
- 280 - 153.86 = 126.14 in²
As per the problem
The escalator make a 30° angle with the floor .
The escalator have a vertical height of 36 feet.
Now draw the diagram with the given information, the diagram is attached below
From the diagram,
Horizontal length=AB=d
Distance traveled by the person on the escalator stairs=AC=l
In triangle ABC,
Again in triangle ABC, Using Pythagoras Theorem
The horizontal length needed is
The distance a person would travel on the escalator stairs is 72 ft
Answer:
Step-by-step explanation:
<u><em>The correct question is</em></u>
A, B, and C are midpoints of ∆XYZ. What is the length of XY
we know that
The<u><em> Midpoint Theorem</em></u> states that the segment joining two sides of a triangle at the midpoints of those sides is parallel to the third side and is half the length of the third side
step 1
Find the length of YZ
we have
substitute
solve for YZ
step 2
Find the length of XY
Applying Pythagoras Theorem in the right triangle XYZ
substitute the given values
solve for XY
Applying the Midpoint Theorem
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