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AIMO 2021 Secondary 1 — Preliminary (Open Trial 1) Question 3

AIMO · AIMO 2021 Secondary 1 — Preliminary (Open Trial 1)

Question 3

The foot of a ladder is placed 6 feet from a wall. Its top rests 8 feet up the wall. How long is the ladder?

Original printed choices: A: 14 m; B: 8 m; C: 12 m; D: 10 m.

Editorial response format: give the exact answer; the original choices are retained for reference.

Convention: Give the length in feet, using the units in the statement.