C/30 = 8/12
c/30 = 2/3
3c = 60
c = 60/3
c = 20
Supplementary angles are two angles whose sum is 180 degrees while complementary angles are two angles whose sum is 90 degrees. Supplementary and complementary angles do not have to be adjacent (sharing a vertex and side, or next to), but they can be. ... The difference is their sum.
Answer:
Option (3).
Step-by-step explanation:
Option (1).
Since measure of an inscribed angle =
m∠ABC =
= 2(m∠ABC)
= 2(30°)
= 60°
Therefore, this option is not true.
Option (2),
Since,
m(arc AB) = 360 - 220
= 140°
Therefore, this option is not correct.
Option (3),
= 60° + 160°
= 220°
Option (3) is the correct option.
Option (4),
= 360° - 60°
= 300°
Therefore, this option is not correct.
Answer:B.(−78⋅25)+(−78⋅35)=−78⋅(25+35)
Step-by-step explanation:
Answer:
87 degrees
Step-by-step explanation:
because 87 and 2 are diagonal and they are going to be the same. :)