Assume That the Units Shown in the Grid Are in Feet

Assume that the units shown in the grid are in feet.
a. Determine the exact length and width of the rectangle shown.
b. Determine the perimeter and area.
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A) a. Length: $4 \mathrm { ft }$ ; Width: $3 \mathrm { ft }$
b. Perimeter: $14 \mathrm { ft }$ ; Area: $12 \mathrm { ft } ^ { 2 }$

B) a. Length: $4 \sqrt { 2 } \mathrm { ft }$ ; Width: $3 \sqrt { 2 } \mathrm { ft }$
b. Perimeter: $7 \sqrt { 2 } \mathrm { ft }$ ; Area: $24 \mathrm { ft } ^ { 2 }$

C) a. Length: $4 \mathrm { ft }$ ; Width: $3 \mathrm { ft }$
b. Perimeter: $7 \mathrm { ft }$ ; Area: $12 \mathrm { ft } ^ { 2 }$

D) a. Length: $4 \sqrt { 2 } \mathrm { ft }$ ; Width: $3 \sqrt { 2 } \mathrm { ft }$
b. Perimeter: $14 \sqrt { 2 } \mathrm { ft }$ ; Area: $24 \mathrm { ft } ^ { 2 }$