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What is the area of a triangle with a base of 10 cm and a height of 5 cm?

  1. 40 cm

  2. 50 cm

  3. 25 cm

  4. 20 cm

The correct answer is: 25 cm

The area of a triangle is given by the formula A = 1/2 * base * height Substituting the values given: A = 1/2 * 10 cm * 5 cm = 50 cm² All of the other options, except C, are incorrect because they either do not follow the correct formula, or they use incorrect values for base and height. Option A, 40 cm, is incorrect because it only multiplies the given numbers, 10 and 5, instead of following the formula. Option B, 50 cm, is incorrect as well because it uses the values of base and height in the correct order, but it does not divide the resulting product by 2, as indicated in the formula. Option D, 20 cm, is incorrect because it uses the value of the base