Advertisements
Advertisements
प्रश्न
Find the Total Surface Area and the Lateral Surface Area of a cuboid whose dimensions are: length = 20 cm, breadth = 15 cm, height = 8 cm
Advertisements
उत्तर
Here l = 20 cm, b = 15 cm, h = 8 cm
L.S.A of the cuboid = 2(l + b)h sq.m
= 2(20 + 15) × 8
= 2 × 35 × 8
= 560 sq.m2
Total surface area of the cuboid = 2(lb + bh + lh) sq.units
= 2(20 × 15 + 15 × 8 + 8 × 20) sq. cm
= 2(300 + 120 + 160) sq. cm
= 2 × 580 sq. cm
= 1160 sq. cm2
APPEARS IN
संबंधित प्रश्न
The length of a hall is 18 m and the width 12 m. The sum of the areas of the floor and the
flat roof is equal to the sum of the areas of the four walls. Find the height of the hall.
The length , breadth and height of a room are 5 m, 4.5 m and 3 m, respectively. Find the volume of the air it contains.
A cuboidal box is 5 cm by 5 cm by 4 cm. Find its surface area.
If the length of a diagonal of a cube is `8 sqrt(3)` cm, then its surface area is
Three cubes of each side 4 cm are joined end to end. Find the surface area of the resulting cuboid.
The cost of constructing a wall 8 m long, 4 m high and 10 cm thick at the rate of Rs. 25 per m3 is
Length, breadth and height of a cuboid shape box of medicine is 20 cm, 12 cm and 10 cm respectively. Find the surface area of vertical faces and total surface area of this box.
The length of a cold storage is double its breadth. Its height is 3m. The area of its four walls including doors is 108m2. Find its volume.
The total surface area of a cuboid with dimension 10 cm × 6 cm × 5 cm is
