Answer:
D) 20º
Step-by-step explanation:
if one angle is 70º, and the other is 90º, that means that the first two angles equal 160º. since all three interior angles of a triangle have to add up to 180º, the third angle must be 20º.
11=y/6
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hope it helps
sorry, I didn't know how to explain it
65ft
Pythagoreom therom