Selina solutions

Selina solutions

Grade 6

Quadrilateral | Exercise 27(B)

Question 10

Q10) In a parallelogram ABCD, its diagonals AC and BD intersect each other at point O.

If AC = 12 cm and BD = 9 cm ; find; lengths of OA and OD.

Solution:

When diagonal AC and BD intersect each other at point O,

Then OA=OC=\frac{1}{2}AC

OB=OD=\frac{1}{2}BD

OA=\frac{1}{2}\times AC=\frac{1}{2}\times12=6\ cm

OB=\frac{1}{2}\times BD=\frac{1}{2}\times9=4.5\ cm

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Question 10

Q10) In a parallelogram ABCD, its diagonals AC and BD intersect each other at point O.

If AC = 12 cm and BD = 9 cm ; find; lengths of OA and OD.

Solution:

When diagonal AC and BD intersect each other at point O,

Then OA=OC=\frac{1}{2}AC

OB=OD=\frac{1}{2}BD

OA=\frac{1}{2}\times AC=\frac{1}{2}\times12=6\ cm

OB=\frac{1}{2}\times BD=\frac{1}{2}\times9=4.5\ cm

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