Final answer:
The length of the spider's body in Jonah's scale drawing is 2 centimeters, based on the given scale of 0.5 cm equaling 4 mm. If Jonah makes a drawing half the size of the original, the length of the spider's body would be 1 centimeter.
Step-by-step explanation:
The question relates to ratios and scale drawings in mathematics. To find the length of the spider's body in Jonah's drawing, we use the scale given: 0.5 cm = 4 mm. Given that the actual size of the spider's body is 16 mm, we perform a simple calculation to convert that to Jonah's scale. We divide the actual length of the spider's body by the scale factor to find the drawing length:
16 mm ÷ (4 mm / 0.5 cm) = 2 cm
Therefore, the length of the spider's body in Jonah's drawing is 2 centimeters.
For the second part of the question, if Jonah were to make a drawing half the size of the original, we would halve the length we found in the scale drawing:
2 cm ÷ 2 = 1 cm
So, the new drawing of the spider's body would be 1 centimeter.