Which of the following quadrilaterals contains opposite angles that are congruent? select all that apply.
a. trapezoid
b. isosceles trapezoid
c. parallelogram
d. rhombus
e. rectangle
f. square

The measure of an angle is 117°. what is the measure of a supplementary angle?

Which of the following shows the length of the third side, in inches, of the triangle below

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?