about 10 cm about 10 cm about 20 cm about 30 cm about 40 cm
about 10 cm about 10 cm about 20 cm about 30 cm about 40 cm
Answer
Explanation:
Step1: Observe the length comparison
The purple - bar is about 10 cm and the wrench is approximately twice as long as the purple - bar.
Step2: Calculate the length of the wrench
Since the wrench is about twice 10 cm, we have $2\times10 = 20$ cm.
Answer:
About 20 cm