Help! ;^; (05.07) A square pyramid is shown. What is the surface area?

A square based pyramid, with bases labeled 1.5 centimeters and side length of triangle labeled 3 centimeters.

6.75 cm2
11.25 cm2
20.25 cm2
81.75 cm2

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

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