1-3 Measuring Angles
Angle F and angle G are congruent angles. If m2F + m2G + mzH= 180, classify both angles if ZH is obtuse and if 2 H is acute.
OA If ZH is obtuse, then LF and LG are both acute. If ZH is acute, then ZF and ZG may be either obtuse or acute.
B If H is obtuse, then ZF and LG are both acute. If ZH is acute, then LF and 2G are both obtuse.
OC LF and ZG are both obtuse, whether H is acute or obtuse.
OD LF and LG are both acute, whether H is acute or obtuse.