Answer:
11) 61.4
Step-by-step explanation:
I'll do problem 11 as an example.
Draw a radius line from each point of intersection to the center of the circle. Since radius lines are equal, and each radius line forms a right angle with the tangent line, you end up with 4 kites.
By definition, kites have two pairs of equal sides, so if one leg is 8.3, so is the other leg. 15.4 − 8.3 = 7.1, so the leg of the next kite is 7.1. Repeating all the way around, we get that the length of the 4th side of the polygon is 8.3 + 4.3 = 12.6.
Therefore, the total perimeter is:
P = 12.6 + 15.4 + 18.1 + 15.3
P = 61.4
