Jia is tiling a floor. the floor is asquare with side lenghth 12 feet. jia wants the tiles to be squares with side lengh 2 feet . how many tiles does jia need to cover the entire floor? note that the area of a square is s2, where s is the side length. explain. is it substract or divide?

1. Find the area of floor, using formula

where s is square side length.

Thus,

2. Find the area of each square tile with side length 2 ft:

3. Now 144:4=36 tiles are needed to cover the entire floor.

36 tiles

a is the correct

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet