8.G.5 exploring Angles of triangles - iMater

Step 1 Identify the measures of the given angles. /S is a right angle, so m/S 5 908 m/T 5 368 Step 2 Write an equation. Substitute the measures of the given angles. m/R 1 m/S 1 m/T 5 1808 m/R 1 908 1 368 5 1808 Step 3 Solve the equation for m/R. m/R 1 908 1 368 5 1808 Add like terms. m/R 1 1268 2 1268 5 1808 2 1268 Subtract 1268 from both sides ... ................
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