Answer: 120 ft^2 ==> 1st option
Step-by-step explanation:
R=Area of rectangle. T=Area of Triangle. A=Total Area of Figure
R=12*6=72
MO=(13^2-(10/2)^2)^1/2 ==> use distance formula c^2-b^2=a^2
MO=(169-5^2)^1/2
MO=(169-25)^1/2
MO=144^1/2
MO=12
T=1/2 * 10 * MO
T=1/2 * 10 * 12
T=6*10
T=60
M=Area of Mini-Triangle
M=1/2 * 4 * 6
M=3*4
M=12
A=72+60-12
A=60+60
A=120 ft^2 ==> 1st option
