Here is a solid square based pyramid. The base of the pyramid is square of side 12cm.
The height of the pyramid is 8cm.
X is the midpoint of QR and XT=10cm.
Work out the total surface area of the pyramid

215.92 dollars is the answer

your answer is the frist one

hop i

step-by-step explanation:

there's the chart

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110