Answer:
it is slightly less than 12
Step-by-step explanation:
Here’s a photo of what my bio teacher said for the Scientific method
Answer:
b
Step-by-step explanation:
okay so
117° + angle a = 180° (supplementary angle)
angle a = 180 - 117
= 63°
then angle a + angle b + 81° = 180° ( angle sum property)
so... 63° + angle b + 81° = 180
144 + angle b = 180°
angle b = 180 - 144
= 36°
hope this helps.
