Question

A. find the surface area of the glass surfaces of the fish tank B. Find the surface area of the plastic surface of the fish tank

Answer 1

To determine the surface area of the glass surfaces, we will determine the area of each rectangle and sum them.

The area of a rectangle is given by the following formula:

$A=legth*width.$

Now, the rectangles that compose the total surface area of glass have dimensions:

$32in\times12.75in,\text{ 32in}\times19in,12.75in\times19in.$

Therefore, the total area adding up the areas of the rectangles is:

$A_t=32in\times12.75in+2\times12.75in\times19in+2\times32in\times19in.$

Answer part a:

$2108.5in^2.$

Now, the area covered by the plastic lid is the area of a rectangle of dimensions

$32in\times12.75in.$

Therefore, the surface area of the plastic surface is:

$408in^2.$

Answer part b:

$408in^2.$