Practice · Area & Surface Area — L5 Changing a dimension changes the area; reasonableness clinic

Question 1 of 10 · 0 correct so far
Difficulty: Medium
Short answer

A rectangle is 5 m x 4 m (area 20 m²). The WIDTH is doubled; the length stays 5 m. What is the new area?

Fractions like 1 1/2, 9/6 and 3/2 are all accepted where they're equal.

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