Question

find the total surface area of cuboid whose dimensions are lenth = 15 cm,breath = 15 cm,hieght = 5 cm​

Answer 1

Answer:

length = 15 cm,Breadth = 15 cm Height =5cm

Total surface area of cuboid = 2(lb+bh+hl)

=2(15×15+15×5+5×15)

=2(225+75+75)

=2(375)

=.750cm

Answer 2

Given :

• Length of the cuboid = 15 cm
• Breadth of the cuboid = 15 cm
• Height of the cuboid = 5 cm

To find :

• Total surface area of the cuboid.

Solution :

Formula used :-

${\boxed{\sf{TSA\:of\: cuboid= 2(length\times\: breadth+breadth\times\:height+length\times\: height)}}}$

TSA of cuboid ,

=2 (l×b + b×h + l×h)

= 2 ( 15×15 + 15×5 + 15×5) cm²

= 2 ( 225 + 75 + 75 ) cm²

= 2 × 375 cm²

= 750 cm²

Therefore, the total surface area of the cuboid is 750 cm².

_____________________

Additional information :-

★ CSA of cuboid = 2(length× Breadth) × height.

★ Volume of cuboid = length × breadth × height.

★ TSA of cube = 6a² [ where a = Side]

★ Volume of cube = a³ [ a = side]

★ Diagonal of cube = a√3