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# Angles of a Triangle

ACTMAT-LNQNKC

Darren is sitting at the window of his living room which is at a height of 15 feet above the ground.

A bird is sitting on the edge of the roof of a building at a height of 70 feet above the ground.

If the horizontal distance between the window and the building is 55 feet, at what angle must Darren shoot to kill the bird (disregarding the atmospheric resistance and the gravitational pull)?

A

$30°$

B

$45°$

C

$60°$

D

$75°$

E

$90°$