Find the value of a that makes quadrilateral UVWX a parallelogram.

⃟⃟⃝⃟⃝⃟⃝⃟⃝⃟⃟⃝⃟⃝⃟⃝⃟⃝

Step-by-step explanation:

If a figure is a parallelogram, then it cannot be a trapezoid. I. 13. If a figure is not a ... Find the value of n so that PQRS is isosceles. una lon+19=2ncy. 23= 2n.

Step-by-step explanation:

correct answer:

b.(19,-2)

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.