Question

A table top measures 2 m 25 cm by 1 m 50 cm. what is a perimeter of the table top ?

Answer 1

.....................

550cm

or

5.5m

Answer 2

A table-top measures 2 m 25 cm by 1 m 50 cm. What is the perimeter of the top of the table-top?

${\huge{\mathsf{\blue{Given\:that\::-}}}}$

• Length of table top, l = 2 m 25 cm
• = 2 + 0.25 (Because 25 cm = 0.25m)= 2.25m

Also,

• Breadth of the table top, b = 1 m 50 cm
• = 1 + 0.50 (Because 50 cm = 0.50m)= 1.50 m

We know that,

${\tt{\boxed{\green{Perimeter \:of\: table-top \:= \:2 \:(l + b)}}}}$

= 2 (2.25 + 1.50)

= 2 × 3.75

${\huge{\boxed{= \:7.5 \:m}}}$

Hence, perimeter of table-top is 7.5 m.

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