Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b and c, as shown below:
what is the distance between the walls?
30 m
40 m
50 m
70 m

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?