Question

do 16 problemsand 17 1st one

Answer 1

16)

Since l║m,

z = 100° (Corresponding Angles)

Since p║q,

x = 100° (Alternate Angles)

Angle adjacent to x = 80° (Co - interior angles are supplementary, x = 100 therefore other angle is 80 (100 + 80 = 180)).

y = 80° (Vertically Opposite Angles)

17)

130° + ∠EFD = 180°

∠EFD = 180° - 130°

∠EFD = 50°

50° ≠ 40° (Vertically Opposite Angles are equal if two lines are parallel)

Therefore, AB ∦ CD

Hope it helps :)

Answer 2

Answer:

Cost of 50 pencils  = Rs 75.

No of pencils be x @ Rs

 x = 100 pencils.

Answer 3

Answer:

Cost of 50 pencils  = Rs 75.

No of pencils be x @ Rs

 x = 100 pencils.

Answer 4

Answer:

Cost of 50 pencils  = Rs 75.

No of pencils be x @ Rs

 x = 100 pencils.