The answer is: " 3 inches " .
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<u>Note</u>:
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" 6 inches" / (2) = "3 inches" .
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M N
| 3 " |
<------------A------|------B------------C------------D------------>
| 6 in | 6 in | 6 in |
|
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Part A
The angle of elevation of the staire case is given by

Part B:
<span>If
the landing of each step is changed to 17 inches and the elevation of
each step to 21 inches, the new angle of elevation for the
staircase is given by
</span><span>

</span>
(-3,4)
Is
The
Correct answer
Answer:
D
Step-by-step explanation:
Because they are opposite of each other