Where on a big-volume rigid measure is the capacity typically marked?

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Multiple Choice

Where on a big-volume rigid measure is the capacity typically marked?

Markings on the side are placed there for clear visibility and accurate reading as the liquid level changes. Reading from the side at eye level helps prevent parallax error, so you get a correct measurement every time. If the capacity were marked inside, the markings could be obscured by the liquid itself, making it hard to read. Bottom marks would be difficult to view once the container is full, and top marks near the rim can be blocked or distorted as you approach the top. That combination of readability and reliability is why the side is the best place for the capacity markings.

Markings on the side are placed there for clear visibility and accurate reading as the liquid level changes. Reading from the side at eye level helps prevent parallax error, so you get a correct measurement every time. If the capacity were marked inside, the markings could be obscured by the liquid itself, making it hard to read. Bottom marks would be difficult to view once the container is full, and top marks near the rim can be blocked or distorted as you approach the top. That combination of readability and reliability is why the side is the best place for the capacity markings.

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