Answer:

Step-by-step explanation:
Given that,
Base = 42
Perpendicular height = 31
We need to find the value of
. It can be calculated using trigonometry as follows :

Put all the values,

So, the value of
.
Y=-5.11111 how I solved it is in the picture attached
Answer:
15.0175439
Step-by-step explanation:
Step-by-step explanation:
Angle of a circle = 360
x + 90 + 84 + 16 = 360
x + 190 = 360
x = 170°