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Mathematics, 21.06.2019 23:20
1. â 1 is complementary to â 2 and â 3 is complementary to â 2. subtraction property of equality 2. mâ 1 + mâ 2 = 90 and mâ 3 + mâ 2 = 90 substitution 3. mâ 1 + mâ 2 = mâ 3 + mâ 2 definition of complementary 4. mâ 1 = mâ 3 given
Answers: 3
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