Select all true statements. A. All rectangle are squares.

B. All rectangle are parallelograms.

C. All rhombus are parallelograms.

D. All squares are rectangle.

E. All squares are rhombuses.

F. All trapezoid are parallelograms.

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

Don't know how to find x given these segment lengths

What is the frequency of the sinusoidal graph?