Question

Quadrilateral PQRS is a trapezium,AB∥ PS∥ QR.If PA=3 cm, AQ = 1.4 cm, BR =2.1 cm then SB =?

1 point



2 cm

2 .5 cm

4 cm

4.5 cm

Other:


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Answer 1

by parallel lines theorem of trapezium

QA/PA=RB/SB

1.4/3=2.1/x

1.4x =2.1*3

x =2.1*3/1.4

x =9/2

x =4.5 cm

Answer 2

Answer:

option D} 4.5cm.

Step-by-step explanation:

★ By property of three parallel lines =

PA = SB

AQ BR

3 = SB

1.4 2.1

SB = 3 × 2.1

1.4

SB = 6.3

1.4

SB = 4.5cm

° option 4} 4.5cm is correct.

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