Multiple Choice Question (MCQ)

Stella leaves her house and starts driving due south 30 miles, then drives due west for 60 miles, and finally due north for 10 milesto reach her office.which of the following approximate straight-line distance, in miles, from her house to office?

  1. ✓

    63

  2. ×

    67

  3. ×

    71

  4. ×

    75

  5. ×

    80

Collected in the board: Triangle

Steven Zheng posted 3 years ago

Answer

  1. The distance from her house to office is,

    AD = \sqrt{(30-10)^2+60^2} = \sqrt{4000} \approx63 miles.

Steven Zheng posted 3 years ago

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