GeometryQuestion 440 of 550

An isosceles triangle has two equal sides of 13 cm and a base of 10 cm. What is its height to the base?

  1. 13 cm
  2. 12 cm
  3. 11 cm
  4. 8 cm
Show answer

Correct answer: 12 cm

The height cuts the base in half. h = √(13² - 5²) = √144 = 12 cm.

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Questions last reviewed: 21 October 2026