Question

A rectangular painting of 28 cm length and 12 cm breadth has to be framed.
What will be the cost of framing it, if the wood strip costs 15 per cm?


​

Answer 1

Answer:

total centimetres is 28cm

28×15= 420

the total framing of wood stirp cost is 420

Answer 2

$\huge\rm{ Question:-}$

A rectangular painting of 28 cm length and 12 cm breadth has to be framed. What will be the cost of framing it, if the wood strip costs 15 per cm?

$\huge\rm{ Answer:-}$

______________________________

→length of wooden frame = 28 cm (given)

→breadth of wooden frame = 12 cm (given)

#[To find cost of framing we need to find it's perimeter.]

So,

perimeter of the frame =

=> 2(length + breadth)

=> 2(18+12)

=> 2(30)

=> 60 cm

_____________________________

→1 cm = Rs 15 (given)

Therefore,

Cost of 60 cm = 60 cm × Rs 15 = Rs 900

_____________________________

So, the cost of framing with wooden strip around the picture is Rs 900.

_________________________

Concept:- Perimeter of rectangle

Marks:- 3 marks

__________________________

Writer:- Sayandeep Ghosh