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If triangle RST is an acute triangle, then m∠S must be less than 90°. equal to 90°. equal to 100°. greater than 90° and less than 180°.

Craig Stewart

in Mathematics

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Heather Maxwell on September 18, 2018

If the triangle RST is an acute triangle, all the interior angles of a triangle must be acute. Therefore, m∠S must be less than 90°.Response:A ) Less than 90°.


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