Answer: 
Step-by-step explanation:

Plug in your values.

Square 1ft.

Plug this into a calculator or do it manually.

Answer:
16.9°
Step-by-step explanation:
tan x = 1.7/5.6
tan^-1 x = 16.9°
A tetrahedron is also called a regular triangular pyramid.
option b is the correct answer.
4. 4. 1.
25 20 10
This is the answer