In the scale drawing below, each
side is 1.9 cm long. If the drawing
is going to be enlarged by a scale
factor of 20, what is the
perimeter of the enlarged object?
4*1.9*20 = ?
4*1.9*20 = ? That is assuming that the drawing is a square.
actually, it could be a rhombus. I guess you could have said
p = n*1.9*20
if there are n sides.
what is that picture above
yours bigger mine smaller
Picture is pentagon
To find the perimeter of the enlarged object, we first need to determine the scale factor and apply it to the original perimeter.
In the given scale drawing, each side is 1.9 cm long. Thus, the original perimeter of the object is 4 times the length of one side (since it's a rectangle):
Original Perimeter = 4 * 1.9 cm.
To find the scale factor, we compare the length of one side in the original drawing to the length of one side in the enlarged object:
Scale Factor = Length of one side in enlarged object / Length of one side in original object.
In this case, the length of one side in the enlarged object is 20 times the length of one side in the original object:
Scale Factor = 20.
Now we can find the perimeter of the enlarged object by multiplying the original perimeter by the scale factor:
Enlarged Perimeter = Original Perimeter * Scale Factor
= (4 * 1.9 cm) * 20.
Therefore, the perimeter of the enlarged object is 76 cm.