Question

18) If the measures of
supplementary angles are
(y+10)° and (y-10)° then the
measure of each angle is​

Answer 1

Answer:

y=90°

Step-by-step explanation:

=(y+10)°+(y-10)°=180°. (i.e. sum of supplimentry angles is

equal to 180°)

=2y=180

=y=180/2

=y=90°

Answer 2

(y+ 10 °) ( y- 10 ° ) = 180 °

y+ y + ( + 10 ) ° - 10 ° = 180°

2y = 180°

y= 180° / 2

y = 90 ° .... first angle

second angle

90° -180°= 90°