Question

jill has an online shop where she sells handmade ring holders, shown below. jill is making 5 ring holders for an order, and the last step is to seal the entire surface using beeswax. what is the total surface area jill needs to seal? round your answer to the nearest hundredth. square centimeters

Explanation:

Step1: Calculate the slant height of the cone

For a cone, the formula for the slant height \( l \) is \( l=\sqrt{h^{2}+r^{2}} \), where \( h = 5.6\) cm and \( r=1.2\) cm.

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Step2: Calculate the surface area of one cone

The surface area of a cone \( A=\pi r(r + l)\). Substitute \( r = 1.2\) cm and \( l\approx5.73\) cm.

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Step3: Calculate the total surface area for 5 cones

Multiply the surface area of one cone by 5. \( 26.11\times5=130.55\)

Answer:

130.55