See attached picture.

Mathematics

1 answer:

Andrei [34K]2 years ago

5 0

Answer:

Step-by-step explanation:

Since the triangle is a right triangle, we can use SOH CAH TOA to find ?. 10 is OPPOSITE to ? and 21 is HYPOTENUSE to ?, so we can use SIN to find ?.

SIN(?) = 10/21

? = ARCSIN(10/21)

? = 28.437

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