Question

A room is 13 m long 11m wide and 8m high what will be the expenses colouring the wall at rate of 25paise per m square

Answer 1

$<I>$☞HEYA MATE☜



→ SURFACE AREA OF RECTANGULAR ROOM

→ 2(lb + bh + hl ) - lb
2 (13×11+11×8+8×13)-13×11
2 ( 143+ 88+ 104 ) - 143
2 ( 335 ) - 143
670 - 143
527

AREA TO BE PAINTED = SURFACE AREA × 25 PAISE

527 × 25
13175 PAISE

❣️hope this helps uh ❣️

Answer 2

use the formula of cuboid and just subtract area of rectangle
and multiply by 25 paise