21) shark 19) 0.75 mph, 45 mph, and 90 miles per 2 hrs. idk if 19's answer will work but you can try!
The sum of all the angles in a pentagon is 540 degrees.
To solve for x, you must add up all the known angles and then subtract from 540.
So, you. Would do, 540-(100+100+90+120)
That equals 540-510 which is 30.
Your final answer is x=30
Hope it helps!!
4/5 because 8/10 is equal to 4/5 which is the simplest form<span />
Answer:
yes it is it has 3 equal sides
Step-by-step explanation: