Question

find the lateral surface area and total surface area of l=4cm,b=8cm,h=9cm

Answer 1

Answer:

Step-by-step explanation:

LSA of a cuboid: 2 ( l + b ) h

TSA of a cuboid: 2 ( lb + bh + hl )

LSA = 2 ( 4 + 8 ) × 9

= 2 × 12 × 9 = 216cm^2

TSA = 2 ( 4 × 8 + 8 × 9 + 9 × 4 )

= 2 × ( 32 + 72 + 36 )

= 2 × 140

= 280cm^2

-Thanks

Answer 2

Answer:HEY BUDDY! THESE ARE STRAIGHT ANSWERS WITH THESE FORMULAS....

Lateral surface area-2h[ L+B]

TOTAL SURFACE AREA-2[LB+BH+HL]

Step-by-step explanation:

LATERAL SURFACE AREA=2*9[4+8]

=18*12

=216

TOTAL SURFACE AREA=2[32+72+36]

=2[140]

=280