The exterior and an interior angles always add up to 180 degrees.
180-150=One exterior angle
180-150=30
We know that all of the exterior angles add up to 360
360/30= the number of sides
360/30=12
The shape has 12 sides.
The answer to this is a=3
Answer:b
Step-by-step explanation:
You can make 3 tens blocks and then 3 tens blocks but only two should be filled than for the third one fill 7 only
