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Question 8

ACT Comprehensive Diagnostic Quiz · Deck: ACT Mastery: English, Math, Reading & Science

A triangle has side lengths $a = 5$ and $b = 8$ with included angle $C = 60^\circ$. What is the length of side $c$?

  1. $\sqrt{49} = 7$
  2. $\sqrt{89}$
  3. $\sqrt{40}$
  4. $9$

Source: OpenStax Algebra and Trigonometry 2e, Section 10.2

Exam guide: ACT — subjects, format and official sources.

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