Question

HELP!! NEED ANSWER ASAP! HIGHSCHOOL 10TH GRADE GEOMETRY

Please answer the screenshot as clearly as possible. I have also included the answer choices
(Tell me which answer goes in which box)

Answer 1

See attached

Explanation:

Refer to picture

• 2. Linear pair postulate
• 3. m∠ABC + m∠CBD = 180°
• 4. Substitution property of equality
• 5. m∠ABC = 90° ⇔ Subtraction property of equality