Answer:
7/15 Hope it helps
Step-by-step explanation:
-4/5+9/20=-16/20+9/20=-7/20
A scalene triangle has 3 unequal sides, so none of the sides are the same. A right triangle has one angle that is 90°, which is indicated by a little square. An isosceles triangle has 2 equal sides (it looks like an ice cream cone). And an equilateral triangle has 3 sides that are all the same.
The exact volume would be 80 feet long
