Answer:
Explanation:
13
Taking the side we can't quite see, I would guess it is an 8.
A 45 45 90 triangle is isosceles.
The two legs are equal.
x = 8
14
Little harder
The tangent of the angle is Tan(x) = opposite over adjacent
opposite = 10
adjacent = 15
Tan(x) = 10/15
Tan(x) = 2/3
x = tan-1(2/3)
x = tan-1(0.6666666667)
x = 33.7 degrees.
Do you know how to put this in your calculator.
2nd
tan
0.666667
=
gives
33.7 rounded