beginning of content:
SAT Subject Test
In the figure above, has a right angle at
If the length of side
is
and the measure of
is
, what is the length of side
?
Select an Answer
Correct Answer:
No
Correct Answer:
Yes
Correct Answer:
No
Correct Answer:
No
Correct Answer:
No
View Correct Answer
The correct answer is B.
To determine the length of side , apply the definition of the tangent of an angle
in a right triangle: the tangent of
is equal to the length of the side opposite angle
divided by the length of the side adjacent to angle
. Thus in this case,
, which gives
. Use a calculator, set to degree mode, to compute that
.
Question Difficulty:
medium