Mr. Doyle bought a motorcycle that listed for $4,575. On May 19, it was on sale fo 19% off the list price. Estimate the discount. Compare the estimated discount with the exact discount. Find the sale price

1. ∠1 is complementary to ∠2 and ∠3 is complementary to ∠2. subtraction property of equality 2. m∠1 + m∠2 = 90 and m∠3 + m∠2 = 90 substitution 3. m∠1 + m∠2 = m∠3 + m∠2 definition of complementary 4. m∠1 = m∠3 given