Bert because he used 1 1/8 feet and akio used 1 foot and if you look at it bert used more board. Hope that helps!!!! ;D
Answer:

Step-by-step explanation:
The formula for the area of a triangle is 
The triangles that can be made is the triangle that has legs 20 and 50 and the triangle that has legs 20 and 10.
Since there are 2 of each triangles, we get:

The answer that fits is the first option.
Answer:

Step-by-step explanation:





Factor, common term:- x-3

~
Answer:
C. Right
Step-by-step explanation: