Answer:
<CBE and <BED are co-interior Angles. Let <BEC
= X 60+(×40)=180
× =80
Using the SA formula you'll have to substitute in the edge length for s.
SA = 6(312)²
SA = 584064
The surface area is 584,064 feet²
Hope this helps :)
Answer:
the answer is 69 because i like him
Multiplying the denominator and numerator both by two, you receive the answer 82/4. Multiplying the denominator and numerator both by three, you receive the answer 123/6. Multiplying the denominator and numerator both by four, you receive the answer 164/8.
The missing angle number is 75
43+62=105
180-105=75
and it looks like a acute angle less than