Question

Refer to 1. D.
(d. If XY = (x + 2) cm, and BC = (3x – 1) cm, find XY and BC.)

Answer 1

Answer:

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so here we go

Step-by-step explanation:

now here as x and y are midpoints of ab and ac

xy is parallel to bc and xy=half of bc because of midpoint theorem

thus,, xy=half of bc

now then when bc=25

hence xy=12.5 cm

similarly when xy=14 cm

bc=2xy

ie bc=28 cm

and ac xy parallel to bc

angle ayx=angle acb because when two lines are parallel corresponding angles are equal

hence angle ayx ie angle I=50