Answer:
64 degrees
Step-by-step explanation:
so... since where the triangles join is a right angle you should
1. work out the third angle of the bottom triangle
180 - 84 -36 = 60
2. since a right angle is 90..
90-60 = 30
3. which means the top triagnles angle is 30 degrees
4. 180 -86 - 30
= 64
