Answer:
40
Step-by-step explanation:
(120 - 40)/2 = 80/2 = 40
by pythagorean formula, the last side is √(61)
by cos rule
cos A
A = 39.81
Answer:
14×14=196 196 = answer correct
Sin Ф=opposite/ hypotenuse
In this case:
sin 25º=9 in /c
c=9 in/ sin 25º
c≈21.3 in.
Answer: sin (25º), in this case can be used to find the lenght of the hypotenuse, and the length of this hypotenuse would be 21.3 in.