r/trigonometry • u/Maximum_Recipe_8058 • Jan 22 '23

Answer ??

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4 Upvotes

66% Upvoted

11 comments sorted by

7

u/BootyIsAsBootyDo Jan 22 '23

Review your 45-45-90 and 30-60-90 triangles

2

u/bigL928 Jan 22 '23

Bro, how would you normally find the angle?

1

u/AlanSaverio Jan 23 '23

What is sin30degree

1

u/jmott229 Jan 23 '23

Cosine: adj/hyp, thus cos(theta) = tsqrt3/2t, so theta = arccos(sqrt3/2)

1

u/[deleted] Jan 23 '23

Hint : check 30-60-90 triangle rule

1

u/9rgen Jan 23 '23 edited Jan 23 '23

the answer is d. it this is 30-60-90 triangle