An entryway’s floor is square with an area of 81 ft2. Which side length of a square rug would fit in the entry with a border of 1 foot of floor around each edge?

The length of the required rug is 8ft

Step-by-step explanation:

Given

Required

Determine the length that will fit an entry with an edge of 1 foot

First, we need to determine the lengths of the rug;

Since, the rug is a square:

Take Square root

The length of the rug is 9 feet

To determine the rug that would feet the entry, we have to subtract the length of the edges;

Hence;

The length of the required rug is 8ft

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation: