Find out the length of each side. For the slanty sides, you can do this by using the formula
For the straight sides (like the one on the bottom and the one on the left), just use simple subtraction.
Add up all 4 sides and you get the perimeter. You should get 20, 15, 
and 
. The total is 35 + 
.
Isosolic
Step-by-step explanation:
Here's an easy way to fold any rectangle of paper into a triangle with three sides the same length.
Fold the paper in half long-ways, then open it out flat.
Fold a bottom corner up to touch the fold line, making a sharp point on the other corner.
Now fold the two RED edges together.
Answer:
c. 
Step-by-step explanation:
× 
Answer:
Obtuse because it bigger than an acute and a right angle
A rectangle has two couples of equal sides, so a soccer fields has two 80-meters sides and two 120-meters sides.
This leads to a perimeter of
If you go around it twice, you'll run 800 meters
