Sarah is building a chair for her front porch. She cuts each leg so that they form a 45° angle with the base of the seat of the chair as shown in the diagram below.

Pls I rlly need help.

Ihave trouble finding the nth term of a linear sequence

Mrs. gehrke said cheddar weighs 16.8 pounds. he actually weighs 15.2 pounds. what is the percent error?

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