In right triangle DEF, we have angle D =25 , angle E = 90, and EF = 8. Find to the nearest tenth. You may use a calculator for this problem.
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In right triangle DEF, we have angle D =25 , angle E = 90, and EF = 8.
Find to the nearest tenth. You may use a calculator for this problem.
Find what? sin(25o) = 8 / DF
0.42262 = 8 / DF
DF = 8 / 0.42262
DF = 18.8
tan(25o) = 8 / DE
0.46631 = 8 / DE
DE = 8 / 0.46631
DE = 17.2
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