four square flower beds each of side 5m and 3 rectangular flower beds each of 4m by 3m are dug in a square field side 21 m .Find area of Remaining Field .
Answers
Answer:
305 m²
Step-by-step explanation:
area of sq. field= s²
= 21²
= 441m²
area of sq. flower bed= s²
= 5²
= 25m²
(total area of beds= 25×4=100m²)
area of rec. flower bed= l×b
= 3×4
= 12m²
(total area of beds= 12×3=36m²)
total used area= 100m²+36m²
= 136m²
remaining area= area of field - total used area
= 441m²-136m²
=305m²
hence, 305m² is the remaining area of the field
Answer:
5m^2is the remaining area of the field
Step-by-step explanation:
Area covered by the square flower beds are:
5(4)^2
=(20)^2
=400 meter square
Area covered by the rectangular flower beds are:
(4*3)*3
=36 meter square
therefore total area covered = 400+36=436
the left out area is 21^2 - 436
=441-436=5 meter square