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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Geometry
6.7 Total Surface Area of a Cuboid

Example:
The length, breadth and height of a cuboid are 16cm., 14cm. and 10cm. respectively. Find the total surface area of the cuboid.
Solution:
Total surface area of cuboid = 2 (l*b + b*h + h*l).
Given that,
l = 16cm., b = 14cm. and h = 10cm.
Substituting values in the equation we get,
= 2 (16*4 + 14*10 + 10*16)
= 2(224 + 140 + 160)
= 2 * 524
= 1048 Sq. cm.

Directions: Solve the following problems.

Q 1: The length, width and height of a cuboid are 12cm., 11cm. and 10cm. respectively. Find the total surface area of the cuboid.
722 Sq. cm.
726 Sq. cm.
724 Sq. cm.
728 Sq. cm.

Q 2: The length, width and height of a cuboid are 15cm., 14cm. and 13cm. respectively. Find the total surface area of the cuboid.
1178 Sq. cm.
1174 Sq. cm.
1172 Sq. cm.
1176 Sq. cm.

Q 3: The length, width and height of a cuboid are 16cm., 14cm. and 12cm. respectively. Find the total surface area of the cuboid.
1166 Sq. cm.
1164 Sq. cm.
1168 Sq. cm.
1162 Sq. cm.

Q 4: The length, width and height of a cuboid are 8cm., 6cm. and 4cm. respectively. Find the total surface area of the cuboid.
206 Sq. cm.
208 Sq. cm.
204 Sq. cm.
202 Sq. cm.

Question 5: This question is available to subscribers only!

Question 6: This question is available to subscribers only!


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