Question

GIVE THE CORRECT ANSWER AND GET TWO THANKS IN 1 MIN❤️


Cuboid in which length = 50 cm, breadth = 40 cm and height = 2.5 cm?? ✌️✌️✌️​

Answer 1

Given that:

• Length of the cuboid = 50 cm

• Breadth of the cuboid = 40 cm

• Height of the cuboid = 2.5 cm

Required Solution:

As in the query it was not mentioned about what to find , so both the method of finding the value of cuboid is used here.

• First Method!!

We know that,

➦Total Surface Area of a cuboid = 2 ( lb + bh + hl )

Applying this formula,

➦Total Surface Area of a cuboid = 2 ( lb + bh + hl )

• Putting the values .

➦Total Surface Area of a cuboid = 2 ( 50 × 40 + 40 × 2.5 + 2.5 × 50 )

• According to BODMAS , firstly we multiply the numbers.

➦Total Surface Area of a cuboid = 2 ( 2000 + 100.0 + 125.0 )

• Now, we remove the zeroes

➦Total Surface Area of a cuboid = 2 ( 2000 + 100 + 125 )

• Now, adding the numbers

➦Total Surface Area of a cuboid = 2 × 2225

• Final step, by multiplying we got the required Value.

➦Total Surface Area of a cuboid = 4450 cm²

• Second Method!!

We know that,

➦ Laterall Surface Area of a cuboid = 2h ( l + h )

By applying this Formula,

➦ Laterall Surface Area of a cuboid = 2h ( l + h )

• Putting the values.

➦ Laterall Surface Area of a cuboid = 2 × 2.5 ( 50 + 40 )

• Firstly , Adding the numbers because it have brackets.

➦ Laterall Surface Area of a cuboid = 2 × 2.5 × 90

• Now , multiplying 2 and 2.5

➦ Laterall Surface Area of a cuboid = 5.0 × 90

• Removing the zero

➦ Laterall Surface Area of a cuboid = 5 × 90

• Final step , Multiplying the last two numbers

➦ Laterall Surface Area of a cuboid = 450 cm²

Happy Learning!!