First you need to know the definition of a complementary angle. That means that two angles add up to 90 degrees, or a right angle.
To find an angle complementary to a 78 degree angle, you need to subtract 78 from 90.
90 - 78 = 12
Answer:
a) 1st and 2nd
b) 4th one
Step-by-step explanation:
Answer:
Interior angles im pretty sure
d^2+35+109=180
d=6
HOPE THIS HELPS
-Todo <3
Step-by-step explanation:
d^2+35+109=180
144+d^2=180
-144 -144
36=d^2
d=6
The first one is 12,and the second 24....dont worry about marking me as brainliest just thank me lol
