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Using Sine to Find the Area of a Triangle

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question 1 of 3

What is the formula to find the area of a triangle with a known height?

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1. In calculating the area of a triangle, why do you multiply by 1/2?

2. What is the formula for finding the area of a triangle with an unknown height?

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About This Quiz & Worksheet

These study tools will reveal to you how much you understand about finding triangle area with sine. Answer quiz questions on topics such as the formula to find the area of a certain triangle and why you'd multiply by a fraction.

Quiz & Worksheet Goals

Answer quiz questions to see how well you know how to:

  • Identify the formula for finding the area of a triangle with a height that is unknown
  • Understand the triangle created when sine is used to find the area
  • Assess what is replaced by 'b times sine C'

Skills Practiced

Practice the following skills:

  • Reading comprehension - ensure that you draw the most important information about 'b times sine C' from the related lesson on finding triangle area with sine
  • Making connections - use understanding of the concept of finding the area of a triangle and how it is connected to a height that is unknown
  • Information recall - access the knowledge you've gained regarding the imaginary triangle created when sine is used to find the area

Additional Learning

Review the lesson called Using Sine to Find the Area of a Triangle for more knowledge on the subject. The lesson will adhere to the following goals:

  • Define area of a triangle
  • Explain what sine is
  • Assess examples of finding triangle area with sine
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