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Total lateral surface of the pyramid is:

which agrees with the second option shown among the list of possible answers

Step-by-step explanation:

The total surface area of this square based pyramid consists of the addition of four triangles (the four lateral faces) of base 1.5 cm and height 3 cm, plus the area of its square base (1.5 cm x 1.5 cm).

Recall that the area of a triangle is defined as the product of its base time its height, divided by two. So the total surface for this pyramid is:

11.25

Step-by-step explanation:

4*1.5*3/2+1.5*1.5

2*4.5+2.25

11.25cm2

step-by-step explanation:

24

step-by-step explanation: