11. robert photographs a lush forest of sea fans after diving 40 feet in the reefs of
cozumel, just off mexico’s caribbean coast. he then rises 23 feet to swim over an
underwater mountain range in order to dive 19 feet to meet up with his brother,
sam. together they rise 31 feet to swim with a bale of hawksbill sea turtles.
how far below sea level are they?

to have more of what you want like money

step-by-step explanation:

save it by not spending on unnecessary stuff and have more

answer:   the paragraph proof is mentioned below.

step-by-step explanation:

given: in a δxwy where

such that, ∠wzx ≅ ∠yzx and zw≅zy

we have to prove that: segment zx is a perpendicular bisector of segment wy.

prove: since, zw≅zy ⇒ ∠wzy is a supplementary angle.

then, ∠wzy= 180°

⇒∠wzx + ∠yzx = 180° ( because xz divides ∠wzy into two parts)

but, ∠wzx ≅ ∠yzx ( given)

⇒∠wzy+∠wzy=180° ( by substitution)

⇒2∠wzy=180°

⇒∠wzy=90°

⇒∠wzy=∠yzx =90°

therefore, xz⊥wy where wz=zy

⇒zx is a perpendicular bisector of wy.