Answer:
Step-by-step explanation:
All you would do is multiply .9 by 20
.9*20=18
90% of 20 is 18
Answer:
About 64.65 degrees
Step-by-step explanation:


Make sure your calculator is in degree mode.
Answer:
YOUR GETTING 400 POINTS
Step-by-step explanation:
Answer:
d one i think
hope it helps
the sum of triangle is 180 degree