Question

In a cuboid , l =5 cm , b =4 cm , h= 3 cm
FIND (A) Diagonal =
(B) C.S.A =
( C) T.S.A=​

Answer 1

Answer:

C.S.A is 54 cm sq

T.S.A is 47 cm sq

Answer 2

Answer:

(A):- 12cm

(B):- 54cm²

(C):- 94cm²

Step-by-step explanation:

(A):- =under root l²+b²+h²

= under root 5²+4²+3²

=5+4+3

= 12cm

(B):- =2lb+2lh+2bh

=2(5)(4)+2(5)(3)+2(3)(4)

= 2(20)+2(15)+2(12)

= 40+30+24

= 94cm²

(C):- =2h(l+b)

=2(3) (5+4)

=6(9)

= 54cm²