Answer: There are five sides in a polygon.
Step-by-step explanation:
Since we have given that
Measure of exterior angles = 72°
We need to find the number of sides of polygon.
As we know the formula for "Number of sides of polygon".
Number of sides is given by
Hence, there are five sides in a polygon.
Answer:
228
Step-by-step explanation:
19 times 12 =228
Answer:
20-
Step-by-step explanation:
3 parts=30 cards thus 2 parts: 20
Answer:
72π (I think)
Step-by-step explanation:
Think of it in terms of the entire circle. A semi-circle is just half a circle, so the area of a semicircle will be half of the area of the entire circle. The radius of the semicircle is 6, so the radius of the whole circle is 12. Then, we can do to get the area of the semicircle is 72π. I'm pretty sure that's right. Let me know if I made a mistake somewhere.