Answer:
A is the answer
Step-by-step explanation:
because it is equal to the first triangle
Answer:
75.44 Square Inches
Step-by-step explanation:
The diagram of the problem is produced and attached.
To determine the area of the cleaned sector:
Let the radius of the larger sector be R
Let the radius of the smaller sector be r
Area of the larger sector 
Area of the smaller sector 
Area of shaded part =Area of the larger sector-Area of the smaller sector

From the diagram, R=10 Inch, r=10-7=3 Inch, 
Therefore, Area of the sector cleaned

Answer:
2/5, 1/3 4/15
Step-by-step explanation:
3x2/5=6/15
5x1/3=5/15
4/15
First try it out yourself then compare answers. Remember, all squares have the same length per each side.
a) 3025
b) 25300