- B There are many relationships here to take
advantage of. Notice that ∠HFGand the 76°angle
form a “Z,” so ∠HFG= 76 °. Remember that “bi-
sect” means to divide into two equal parts, so
∠HFJ=∠JFG= 38 °. Then notice that ∠JFGand
∠FJHform a “Z,” so ∠FJH= 38 °. - A Consider the triangle with the a°angle. The
other two angles in the triangle can be found from
the given angles. Notice the “Z” that contains the two
80 °angles and the “U” that contains the 130°and 50°
angles. Therefore, a+ 80 + 50 =180, so a=50.
130 °
80 °
a°1 2 3
50 °80 °F
H J
G
76 °
38 °38 °104 ° 38 °- E Draw two more parallel lines and work with
the Z’s. Your figure should look like the one above.
50 °
40 °30 °1
2
30 °10 ° 10 °40 °40 °364 McGRAW-HILL’S SAT