9.
A path 4 m wide runs around the inside of a square park of side 100 m. Find the area
of the path. Find the cost of levelling the path at 5 per square metre
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Step-by-step explanation:
a of sq abcd=SxS=100×100=10000
a of sq pqrs=SxS=108×108=11664
a of path=11664-10000=1664m²
levelling path 1m²=5
" "=5×1664=rs8320
Answered by
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INNER SIDE OF SQUARE PARK = 100 = 100² = 10000 ..........
WIDTH =4 CM
= 100 + 4 +4 = 108 CM
= 108²
AREA= 11664 - 10000 = 1664
COST OF LEVELLING = 250 × 25 = 6250 .................
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