Answer:
Vernier caliper
Step-by-step explanation:
The paper towel is circular in shape, should he use the ruler he may come up with a value but the value may not be accurate.
Hence the measuring instrument Justin should use is a vernier caliper, which is a measuring device that can be used to measure the external diameter of the roll of paper
B. 12 would be your answer
Answer:
Fact
Step-by-step explanation:
A Fact is a statement that has been proved :)
Answer-180cm3
Explanation-
The volume of a prism is base x height so v=bh
Here the base equals 4cm times 15m which gives 60cm.And then the height is 3cm.So the total is 15cmx4cmx3cm=180cm³