Answer:
For angle B which is 50 degrees,
hypotenuse = AB =?
Adjacent = BC = 2 units......(given)
cos 50 = adjacent / hypotenuse
0.643 = 2 / AB. .....(as cos 50 = 0.643 approx)
AB * 0.643 = 2
AB = 2 / 0.643
AB = 3.11 units(approx)
Answer:
180
Step-by-step explanation:
Area of troiangle=180
A+B+C=180
22+90+B=90
112+B=180
B=180-112
B=68
perimeter=A+B+C
22+90+68=180
Answer:
180° -x
Step-by-step explanation:
The reference angle is the smallest positive angle between the terminal ray and the x-axis. For a 2nd-Quadrant angle such as 150°, the reference angle is ...
180° -x
_____
If your answer choice is really 180' -x, then the correct answer is "none of the above." 180' is 3°, since there are 60 minutes in a degree.
Answer:
Equation
Step-by-step explanation: