Janet is buying fencing for a triangular flower garden she plans to build in her backyard. If the lengths of the three pieces of fencing are 12 feet, 9 feet, and 6 feet will the flower garden be in the shape of a right triangle? Explain​

The flower garden will not be in the shape of a right triangle

Step-by-step explanation:

If it was, the pythagorean theorem would have to work which means that

9² + 6² would have to equal 12² but it doesn't so the triangle will be an obtuse triangle instead.

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm