Which formula is best used to prove that a figure has congruent sides?

a) Distance formula
b) Midpoint formula
c) Slope formula
d) Area formula

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

Which expression gives the area of the triangle shown below

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg