length of a hall is 15cm and breadth is 13cm.if a carpet is to be laid

1.	length of a hall is 15cm and breadth is 13cm.if a carpet is to be laid leaving 4 cm on all sides. area of the hall left uncovered?
Answer» AREA of the hall = 15 x 13 = 195 cm² dimensions of the carpet length = 15 - 2x4 = 7 cm breadth = 13 - 2x4 = 5 cm area of the carpet = 7 x 5 = 35 cm area left uncovered = (195 - 35) cm² = 160 cm²

length of a hall is 15cm and breadth is 13cm.if a carpet is to be laid leaving 4 cm on all sides. area of the hall left uncovered?

Answer»

AREA of the hall = 15 x 13 = 195 cm²

dimensions of the carpet

length = 15 - 2x4 = 7 cm

breadth = 13 - 2x4 = 5 cm

area of the carpet = 7 x 5 = 35 cm

area left uncovered = (195 - 35) cm²

= 160 cm²