Mr. Ortez use similar triangles to make a design which statement about the triangles in the design must be true

Which of the following of the following sets of side lengths could not form a triangle?

Which best explains why this triangle is or is not a right triangle ?

Deena is planting two rectangular gardens. one garden is 3.67 feet by 8.56 feet, and the other garden is 3.67 feet by 7.45 feet. which expression does not respresent the total area in square feet of the two gardens