verify experimentally that the exterior angle of a triangle is equal to the sum of opposite interior angles ​

The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.

The lengths of the two sides of a right triangle are 5 inches and 8 inches what is the difference the possible lengths of the third side of the triangle

Scenario: 2 storage sheds are to have the same area. 1 is square and the other is rectangular. the rectangular shed is 4 meters wide and 9 meters long question: how large is one side of the square shed in meters?