What is the yellow area
Algebra
Level
1
The length of the entire bar is 30 centimeters. The shorter portion marked green is 10 centimeters. What is the length of the yellow portion with the question mark?
15 cm
25 cm
10 cm
20 cm
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The longer (total) portion is equal to 30 cm. The shorter (green) is equal to 10 cm. If you subtract 30 cm-10cm to get the yellow portion, it is 20 cm!