Match each term on the left with its description on the right. origin each of the four quarters of a plane, as it is divided by the number lines y-axis the vertical number line x-axis the horizontal number line quadrant the place at which the horizontal and vertical number lines cross

126 sq units.

Step-by-step explanation:

We want the side surface area only, we'll calculate both

For the sides, we have 4 triangles with a base of 7 and a height of 9 units.

The area of a triangle is calculated with A = (b * h)/2

So, each of the sides of the pyramid has an area of:

A = (7 * 9) / 2 = 31.5 sq units

There are four sides, so total lateral area: 4 * 31.5 = 126 sq units.

The total lateral area of that pyramid is 126 sq units.