4 × 1 × 3 = 12
2 × 1 × 3 = 6
12 + 6 = 18 cubic ft
Answer:
Each angle = 31 degree
Step-by-step explanation:
3x+10 = 5x-4
14=2x
7=x x=7
21+10=31
35-4=31
Answer:
Incident ray, the reflection ray and the normal to thereflection surface at the point of the incidence lie in the same plane
