How many square tiles of side 10cm each will be needed to tile a floor which is 300cm long and 150cm wide? attach photocopy of your notebbok with your answer..

Step 1

Find the area of one tile

we know that

the area of a square is

where b is the length side of the square

In this problem

Substitute

Step 2

Find the area of the floor

The area of a rectangle is equal to

where

L is the length of the rectangle

h is the width of the rectangle

In this problem

Substitute

Step 3

Find the number of tiles needed

by proportion

therefore

the answer is

60

step-by-step explanation:

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it