A right triangle contains a right angle, so it must have two sides that are perpendicular. If the slopes of two sides can be shown to be negative reciprocals of each other, then it can be concluded that a right angle is formed. If a triangle contains a right angle, then it is a right triangle.
Answer:
90 candy bars will be expired!
Step-by-step explanation:
40/3=1200/x
x = 90
120 the formula for interior angles of a shape is ((n-2)180)n
Answer:
The answer is noncollinear
Step-by-step explanation: