Advertisements
Advertisements
Question
Length and breadth of a bulletin board are r cm and t cm, respectively.
What will be the length (in cm) of the aluminium strip required to frame the board, if 10 cm extra strip is required to fix it properly.
Sum
Solution
We have given, length of the board = r cm and breadth = t cm.
The length of aluminium strip to frame the board = Perimeter of the board
= 2(length + breadth)
= 2(r + t) cm
But 10 cm extra strip is required to fix it properly.
∴ Total length of the aluminium strip = 2(r + t) cm + 10 cm.
shaalaa.com
Is there an error in this question or solution?
