The blueprint of a rectangular house is 2.5 inches by 1.5 inches. If the scale is 1:120, what is the perimeter of the actual house in feet?

80 feet

Step-by-step explanation:

Find L/W

2.5 x 120 = 300 in

1.5 x 120 = 180 in

Turn in-> ft

300/12 = 25 ft

180/12 = 15 ft

Add sides

25 + 25 + 15 + 15 = 80 ft

place r′ so that qr′ is parallel to the tangent.

now we get that ∠r′py=∠pr′q, where y is on the tangent, on the opposite side of p from x.

also, because of the symmetry, ∠r′py=∠qpx.

finally, note that no matter where we place r, as long as it's on the correct arc, we have ∠prq=∠pr′q.

stringing all these equalities together, we end up with ∠prq=∠qpx.

this picture will show how its going to look like.

hope this by jack monhen