So the easiest way to solve this is to use the straight line provided .
180=90+61+x
180=151+x
29=x
Answer:
Step-by-step explanation:
we can use the trigonometric function in a right triangle
cos x = adjacent side to the angle /hypothenuse
cos 36°= x/10 ; multiply both sides by 10
10 * cos 36° = x ; make sure your calculator mode is in degrees
8.1 = x
(a) 1,1 (b) 3,2 (c) 3,2 (d) 1,5
