H P 23. Construction In the diagram of the partial wall frame shown, the vertical beams are parallel. a. Angle ORT measures 90°. How are OR and RS related? b. PT crosses two vertical crossbeams. What word describes PT? C. How are <1 and <2 related?
answer: two angles are called supplementary if they add up to 180°. example: the two angles (140° and 40°) are supplementary because they add up to 180°.
The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'