The figure shows a shot-put ring. The shot is tossed from A and lands at B. Using modern electronic equipment, the distance of
the toss can be measured without the use of measuring tapes.
When the shot lands at B an electronic transmitter placed at B
sends a signal to a device in the official's booth above the track.
The device determines the angles at B and C. At a track meet,
the distance from the official's booth to the shot-put ring is 532
feet. If B = 85.7° and C=5.4º, determine the length of the toss to
the nearest tenth of a foot.

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step-by-step explanation:

at least two

step-by-step explanation:

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.