Question

question 1 - 13
jamie wants to hang lights around the edge of her pool.
how many meters of lights will she need? use 3.14 for π.
199 m
314 m
398 m
544 m

Explanation:

Step1: Calculate the circumference of the circle

The formula for the circumference of a circle is \(C = 2\pi r\). Given \(r=36.5\) m and \(\pi = 3.14\), we have \(C = 2\times3.14\times36.5= 229.22\) m.

Step2: Calculate the length of the two straight - line parts

The length of each straight - line part is \(84.39\) m. The total length of the two straight - line parts is \(2\times84.39 = 168.78\) m.

Step3: Calculate the total perimeter

The total perimeter \(P\) of the pool (the length of lights needed) is the sum of the circumference of the circle and the lengths of the two straight - line parts. So \(P=229.22 + 168.78=398\) m.

Answer:

398 m