$20.00. I don't really understand your question but 20% of 100 is 20.
Answer:
Terry's yard is greater than Todd's yard by 90 square meters.
Step-by-step explanation:
We are given the following in the question:
Terry's yard dimensions:
Length,l = 18 meters
Width,w = 15 meters
Area of Terry's yard =

Todd's yard dimensions:
Length,l = 20 meters
Width,w = 9 meters
Area of Todd's yard =

Thus, Terry's yard is greater than Todd's yard.
Difference in area of yards
= Terry's yard area - Todd's yard area

Thus, Terry's yard is greater than Todd's yard by 90 square meters.
Answer:
Similar Triangles must have matching angles, so you need to prove the angles all match.
Step-by-step explanation:
1.
Angle RTW = Angle STV becasue it's the same angle.
2.
Because ST is parallel to RW and RT cuts through those two parallel lines, you have
Angle TSV = Angle TRW because they are corresponding angles.
3.
Because ST is parallel to RW and TW cuts through those two parallel lines, you have
Angle TVS = Angle TWR because they are corresponding angles.
So now you know the three angles in each triangle match the three angles in the other triangle. They're similar triangles.