Hypotenuse 84015

In a right triangle ABC, the hypotenuse c = 8 cm and the side b = 4 cm.

What is the size of angle α?

Correct answer:

α =  60 °

Step-by-step explanation:

c=8 cm b=4 cm  cos α = b:c  A=arccos(b/c)=arccos(4/8)1.0472 rad  α=A  °=A π180   °=1.0472 π180   °=60  °=60



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