Find the surface area of the pyramid below. Can someone give me a answer

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?