18 is a and 19 is d hope this helps
Answer:
41.74 degrees
Step-by-step explanation:
You must use the arccos to find the angle. This looks like cos^-1 on your calculator.
25/5 would be 5 as a whole number
Answer:
the answer is$8
Step-by-step explanation:
20×4%= $0,8
0,8×10=$8
Answer:
To find the perimeter of a triangle you need to add the lengths of all three sides :)