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Question

In the following figure, XY is parallel to BC, AX=9 cm, XB=4.5 cm and BC=18 cm. Find AYYC

179393_65174b9437f940aa8e22b67e1efbc411.png

A
1
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B
4
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C
3
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D
2
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Solution

The correct option is D 2
In AXY and ABC
XAY=BAC (Common angle)
AXY=ABC (Corresponding angles for parallel lines XY and BC)
AYX=ACB (Corresponding angles for parallel lines XY and BC)
Thus, AXYABC (AAA rule)
Hence, ABAX=ACAY (Corresponding sides)
On subtracting 1 from both the sides, we have
ABAX1=ACAY1

ABAXAX=ACAYAY

XBAX=YCAY

4.59=YCAY

AYYC=2

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