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Radda [10]
2 years ago
11

Trigonometry Question ​

Mathematics
1 answer:
SpyIntel [72]2 years ago
5 0
Use Pythagorean theorem to find BC
AB^2 + BC^2 = AC^2
6^2 + BC^2 = 10^2
36 + BC^2 = 100
BC^2 = 64
BC = 8

If AC = 10, CD and AD = 5
Tan = opp/adj
Tan = 5/8

Triangle BCD is a 45-45-90 triangle
CD = BD = 5
Sec = inverse cos
sec = hyp/adj
Sec = 8/5
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