Question

What is the answer asap someone pls make my day :)​

Answer 1

11.25

Explanation:

4*1.5*3/2+1.5*1.5

2*4.5+2.25

11.25cm2

Answer 2

Total lateral surface of the pyramid is:
`11.25 \,\,cm^2`

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

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:

`Total\,\,Area= 4\,*\,Area_(triangle)+Area_(square)\\Total\,\,Area= 4\,* (1.5\,*\,3\,)/(2) +1.5^2\\Total\,\,Area= 9\,+2.25 \,\,cm^2\\Total\,\,Area= 11.25 \,\,cm^2`