Answer:
All squares have four equal angles
Step-by-step explanation:
Every square must have four equal angles to be a square
Answer:
1.) 9/5 or 1.8 or 1 4/5
2.) 17/2 or .53125 or 8 1/2
If the chalkboard is just rectangular we can just use:
(2 x L) + (2 x W)
or
L+L+W+W
L= Length
W= Width
Answer:
Ratio =
= 
Step-by-step explanation:
The perfect squares from 1-30 are:
1, 4, 9, 16, 25
Total no. of perfect squares = five =5
Total no. of non perfect squares = 30-5 = 25
Ratio =
= 5 / 25 = 
Thomas would take 10 minutes
henry would take 2.5 minutes