Answer:
551.5 cm²
551.5
cm²
Circle area = π * r² = π * 175.5625 [cm²] ≈ 551.5 [cm²]
π ≈ 3.14159265 ≈ 3.14
d = r * 2 = 13.25 [cm] * 2 = 26.5 [cm]
Answer: 2.93
Step-by-step explanation:
Answer:
a=-2
Step-by-step explanation:
Though I am unsure if we were to find a but yeah, hope it's correct
Formula for number of sides, n = 360 / e
Where e is the exterior angle for the number of sides.
e = 21.2°
Number of sides for the regular polygon, n = 360° / 21.2°
n ≈ 16.98
The number of sides is approximately 16.98 sides..Does that make sense?
It does not. In fact, the exterior angle of a regular polygon has to be wholly divisible into 360°.
In the case 21.2° can't clearly be the exterior angle, the question is wrongly set.
The exterior can be say 20°.