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Inverse trigonometry help.

Sorry for the bad quality. I need help with this question ptEaMeGk-1.jpg-large.jpeg
Since AD = 13m and ABCD is a rectangle, BC = 13m. Which function links the adjacent, hypotenuse and the angle?
Reply 2
you dont need inverse trig for this, you use inverse trig to find an angle when you have 2 sides.
As its a rectangle length BC is 13m.

So cos(74) = 13/BD

Rearrange to 13/cos(74) = BD and you find that BD = 47.2
Reply 4
Original post by Edgemaster
Since AD = 13m and ABCD is a rectangle, BC = 13m. Which function links the adjacent, hypotenuse and the angle?

COS

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