Question

length of a room is 6 m and it's length is 5 m how many triangular shaped having length of sides 13 cm , 12 cm and 5 cm can be used for the flooring?​

Answer 1

LENGTH OF ROOM = 6m

BREADTH OF ROOM = 5m

DIMENSIONS OF TRIANGLE = 13×12×5 (cm)

AREA OF RECTANGLE= LENGTH×BREADTH

=> 6×5

=> 30 sq.m / 3000 sq.cm

AREA OF TRIANGLE=

SEMI PERIMETER IS (S) = A + B + C/2

= 13+12+5/2

= 15

AREA OF TRIANGLE = √S(S-A)(S-B)(S-C)

= √15(15-13)(15-12)(15-5)

= √15(2)(3)(10)

= √900 = 30 sq.cm

NO. OF TILES => AREA OF ROOM / AREA OF

TILE

=> 3000 sq.cm / 30 sq.cm

=> 30 tiles

NO. OF TILES THAT CAN BE FITTED = 30