Answer:
90
Step-by-step explanation:
multiply 18 by 5 because 20*5 is 100 so the answer is 90
Answer:
b
Step-by-step explanation:
Answer:
C.
Step-by-step explanation:
15+14+13=42
Hope this helps :)
Answer:
No , because there are different formulas for each prism.
Step-by-step explanation:
Maybe:
Cos90=0
I’m not sure of the question here