how many tiles whose length and breadth are 13 cm and 7 cm respectively are needed to cover a rectangular region whose length and breadth are 520 cm and 140, cm?
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how many tiles whose length and breadth are 13 cm and 7 cm respectively are needed to cover a rectangular region whose length and breadth are 520 cm and 140, cm?
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Answer:
800 tiles
Step-by-step explanation:
area of a rectangle = lb
area of one tile = 13×7
= 91cm^2
area of the rectangular region = 520×140
= 72800cm^2
Therefore, number of tiles which are needed to cover the rectangular region = 72800/91 = 800
HOPE IT IS USEFUL
Hello !!
Step-by-step explanation:
Length of a tile = 13 cm
Breadth of a tile = 7cm
Area of a tile = Length × Breadth
= 13 × 7
= 91 cm²
Length of a rectangular region = 520 cm
Breadth of a rectangular region = 140 cm
Area of a rectangular region = Length × Breadth
= 520 × 140
= 72800 cm2
No. of tiles needed = Area of rectangular region
Area of tiles
= 72800
91
No. of tiles needed to cover a rectangular region
= 800 tiles
Hope it helps