Advertisements
Advertisements
Question
Find the surface area of a cuboid whose length = 10 cm, breadth = 12 cm, height = 14 cm.
Solution
\[\text { Dimension of the cuboid: } \]
\[ \text { Length = 10 cm } \]
\[Breadth = 12 cm\]
\[\text { Height = 14 cm }\]
\[\text { Surface area of the cuboid = 2 } \times (\text { length } \times \text { breadth + breadth } \times \text { height + length } \times\text { height })\]
\[ = 2 \times (10 \times 12 + 12 \times 14 + 10 \times 14)\]
\[ = 2 \times (120 + 168 + 140)\]
\[ = 856 {cm}^2 \]
APPEARS IN
RELATED QUESTIONS
The dimensions of a room are 12.5 m by 9 m by 7 m. There are 2 doors and 4 windows in the room; each door measures 2.5 m by 1 .2 m and each window 1 .5 m by I m. Find the cost of painting the walls at Rs. 3.50 per square metre.
What will happen to the volume of a cuboid if its Length is doubled, height is same and breadth is halved?
If two cubes each of side 6 cm are joined face to face, then find the volume of the resulting cuboid.
If each edge of a cuboid of surface area S is doubled, then surface area of the new cuboid is
Find the volume and total surface area of a cube whose each edge is:
(i) 8 cm
(ii) 2 m 40 cm.
The length, breadth, and height of a cuboid (rectangular solid) are 4 : 3: 2.
(i) If its surface area is 2548 cm2, find its volume.
(ii) If its volume is 3000 m3, find its surface area.
The sum of the radius and the height of a cylinder is 37 cm and the total surface area of the cylinder is 1628 cm2. Find the height and the volume of the cylinder.
A metallic sheet is of the rectangular shape with dimensions 48cm x 36cm. From each one of its corners, a square of 8cm is cutoff. An open box is made of the remaining sheet. Find the volume of the box.
A cuboidal tin box opened at the top has dimensions 20 cm × 16 cm × 14 cm. What is the total area of metal sheet required to make 10 such boxes?
