Find the surface area of the square pyramid shown below. Units2
Base is 8 and hight is 6

The surface area for a pyramid that is: Base 8 and height 6

Would be: 42.87

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: