Atriangle has two angles measuring 90 and 50, calculate the third angle of the triangle.

a) 50
b)40
c)45
d)75

An object in geometry with no width, length or height is a(n):

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle?