Its the third one .......
Answer:
LA=72
TSA= 72+24root3 (about 113.57)
Explanation:
Answer: Line DB
Think of the two planes as pages in a book. They are joined by the spine, which is where the two planes intersect. In this case, that intersection is the line DB.
Point D is on both planes R and S. So is point B. Every point on line DB is found on both planes.
Just add the like terms together.
A = 7
B = 14
For A:
(7(sqrt)2)sin(45) = 7
7/sin(30) = 14
