Question

A scale drawing of a spider is 5 centimeters long. The actual length of the spider is 4 inches. If one of the spiders legs is 4 cm in the drawing how long is the actual leg?

Answer 1

First, we need to determine the scale factor from the drawing to the actual size:

1 inch = 2.54 cm

4 inches = 4 x 2.54 = 10.16 cm

Scale factor = actual size / drawing size = 10.16 cm / 5 cm = 2.032

To find the length of the spider's leg in actual size, we multiply the length of the leg in the drawing by the scale factor:

Actual length of leg = 4 cm x 2.032 = 8.128 cm

Therefore, the actual length of the spider's leg is 8.128 cm.