Answer:
r=6
Step-by-step explanation:
6/11=r/11
cross product
11*r=6*11
11r=66
r=66/11
r=6
The surface area of a regular tetrahedron with edge length s is
... A = (√3)s²
For your edge length of 4 inches, the surface area is
... A = (√3)(4 in)² = 16√3 in²
Answer:
Step-by-step explanation:
Answer: 7/10 Problems left to do
Step-by-step explanation: If you have 10 Problems to do on your homework (10/10) and you complete 3/10 of them, then you take 10-3 to get 7, so your answer is 7/10.
