The floor of Mrs. Romero's room measuring 3meters by 4 meters is to be covered with tiles. Each tile is 20 centimeters squared. How many tiles are needed to cover the floor

300 tiles

Explanation:

area of rectangle: length * width || area of square: length²

area of entire floor: 300 * 400 = 120000 cm²

area of each tile: 20² = 400 cm²

Tiles needed:    → 300 tiles

the area of a triangle is determined by the formula: base x height * 1/2

you'll need to assign a base to the triangle. based on the vertices given, the simplest base would be the line segment from (-2,1) to (2,1). the distance between any two numbers is found by just subtracting them. here, you should subtract the x values to find the distance of this side.

2 - (-2) = 4.

so the distance (aka the length of the base) is 4. the height of the triangle is the distance between the base and the highest point on the triangle which is (3,4). we should subtract the y values this time to find the height/distance.

4 - 1 = 3

so the height is 3.

base = 4

height = 3

hope this if needed hmu