Eric made a drawing of his rectangular bedroom with the scale 3in = 4.5 feet. the drawing was 5 inches long by 4 inches wide. what was the actual area of eric's room?

180 square feet

Step-by-step explanation:

We know that the rectangular drawing has:

5 inches long (L)4 inches wide (W)

And we also know that:

1 inch = 3 feet

We will find how many feet long and wide is the actual room, by multiplying:

Long: 5 inches * 3 feet/inch = 15 feet

Wide: 4 inches * 3 feet/ inch = 12 feet

Now we want to know the area of the rectangle, and the area of the rectangle is:

A = L*W

A = 15 feet * 12 feet

A = 180 square feet

But the actual answer will be 45feet that’s just part A.

sin3a=12/15

step-by-step explanation:

since one side was multiplied by 3 the other side must also be multiplied by 3.

a is the correct