1. If A = 40°, B = 60°, and a = 12 cm, find b.

A, D Given AB = DC, MZABD 35°, and mZBDC = 25°. How does AD compare to BC? AD = BC AD > BC O AD < BC

If mLG = 25°, mLH = 20°, and mZK = 50°, what is MLGMH? Н

Ann is a construction worker, and she is preparing to have concrete poured at her construction site. Each corner is designed to be a 90° corner. Using a tape measure, she takes measurements from the corners, marks a point, and then measures diagonally between the points to see if the corner is 90°. Which of the following sets of measurements would indicate that the corner she measured is 90°? Select all that apply. O 6 feet, 8 feet, and 10 feet O 6 feet, 8 feet, and 12 feet O 9 feet, 12 feet, and 14 feet O 9 feet, 12 feet, and 15 feet O 12 feet, 16 feet, and 18 feet O 12 feet, 16 feet, and 22 feet

Suppose BE is an altitude and mA = 30°. Find m/ ABE. Easy A B

In ADEF, d = 23.4 m, f = 43.5 m, e = 40.9 m and ZF = 80°. Which expression represents sin E? %3D %3D F 40.9 m 80 23.4 m D E 43.5 m

The crew of a helicopter need to land temporarily in a forest and spot a flat horizontal piece of ground (a clearing in the forest) as a potential landing site, but are uncertain whether it is wide enough. They make two measurements from A (see picture) finding ? = 26° and ? = 53°.They rise vertically 100 feet to B and measure ? = 46°. Determine the width of the clearing to the nearest foot.

b. ZA = 50° a = %3D ZB = 77° ZC = b = degrees %3D