Answer:
Area of of the doghouse which is in the shape of right trapezoid is 66.5 square feet.
Explanation:
Consider a right trapezoid with top side AB is 7 feet and height AD is 7 feet. The bottom side DC is extended to the right with 5 more feet.that is (7+5) 12 feet.
We have to find the area of the doghouse which is in the shape of right trapezoid .

that is,

Substitute the values, we get,




Hence, Area of of the doghouse which is in the shape of right trapezoid is 66.5 square feet.