Question

ZA and ZB are sup plementary. If 55°, find O 180°
O 55
O 35
O 125

Answer 1

Supplementary angles has sum 180°

$\\ \sf\longmapsto <A+<B=180$

$\\ \sf\longmapsto 55+<B=180$

$\\ \sf\longmapsto <B=180-55$

$\\ \sf\longmapsto <B=125$

Answer 2

Answer:

125°

Step-by-step explanation:

We know that the sum of supplementary angles is 180°

=> 55 + ang. B = 180°

=> ang. B = 180-55 = 125°