1. A pattern created by using matchsticks is shown below. 1 2 Complete the table in relation to the pattern given above 1 2 Figure Number Total number of matchsticks i. Find the number of matchsticks needed to create the 20th figure.

In trapezoid efgh, m∠gfe=63∘. identify m∠ghe. !

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .