Take a ruled sheet of paper. Draw (in thick colour) two parallel lines I and m. Draw a transversalt to the lines land m. Label Z1 and 22 as shown [Fig 5.28(i)].
Place a tracing paper over the figure drawn. Trace the lines 1, mandt.
Slide the tracing paper along t, until I coincides with m.
You find that 21 on the traced figure coincides with 22 of the original figure.

35-60 students are taking math.

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.

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.