DEF + ABC = 90
DEF + 9DEF = 90
10DEF = 90
DEF = 9
ABC = 81
DEF and ABC are complementary angles and ABC is nine times as large as DEF. Determine the measure of each angle.
2 answers
The shorter leg of a 30°-60°-90° triangle is 6. What is the length of the other leg?
1 answer