Here’s how to use the law of sines and the law of cosines on the ACT. For more ACT trigonometry, check out common identities and definitions.

ACT Law of Sines Law of Cosines

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For a free list of all the math topics that have recently appeared on the SAT or ACT, and/or for answers to any other questions, you can reach me at robertkohen@koheneducationalservices.com or 212-658-0834.