Precalculus Skill Builders Vol 1 Solutions
Precalculus Skill Builders Vol 1 Solutions
Precalculus Skill Builders Vol 1 Solutions
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9. Find the exact area of the following isosceles<br />
triangle.<br />
[ 25 3<br />
4<br />
units 2 ]<br />
5<br />
30˚<br />
5<br />
10. A triangle has angles 30˚, 60˚, and 90˚, and its legs have lengths 7 3 , 7, and 14. How long<br />
is the side opposite the 60˚ angle? [ 7 3 ]<br />
11. Solve for α and β in the following triangle.<br />
[ ! = 30 ! , " = 60 ! ]<br />
12. If a 30-60-90 triangle has a hypotenuse length 100, how long is the short leg? [ 50 ]<br />
13. A 30-60-90 triangle with long leg length 15 3 has a hypotenuse of what length? [ 30 ]<br />
14. Find the area of the triangle at right.<br />
[ 100 3 ]<br />
20<br />
20<br />
30˚<br />
15. Solve for length x in terms of c.<br />
[ x = c 2 ]<br />
16. Solve for lengths x and y in terms of b.<br />
[ x = b 3, y = 2b ]<br />
<strong>Skill</strong> <strong>Builders</strong>
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