A triangle has a base of and a height of . What is its area?

Answer and explanation

Correct answer: B. 45

  1. Step 1: State the triangle area formula: .
  2. Step 2: Substitute base and height : .
Answer
.
Why not the others: Multiplying base by height without dividing by gives , which is the area of a rectangle.

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A triangle has a base of 10… | ACT Geometry and trigonometry