Exercise 12 Page 447

To write the conditional statement in if-then form, we have to identify the statement's hypothesis and conclusion. In the if-then form, the hypothesis comes after if and the conclusion comes after then. Hypothesis:&If... Conclusion:&then...The given statement says that The measures of complementary angles sum to 90^(∘). This tells us that if two angles are complementary if they sum to 90^(∘). We can identify the hypothesis and conclusion. The measures of complementary angles sum to 90^(∘) Now we can write the statement in if-then form. If two angles are complementary, then they sum to90^(∘)