7. Two cubes with 9 cm edge are joined end to end. Find the length of the newly
formed solid.
(a) 18 cm
(b) 9 cm
(c) 27 cm
(d) None of the above
Answers
Therefore, the length of newly formed solid=18cm
Length of cuboid is 18 cm.
Option a is correct.
Given:
- Two cubes with 9 cm edge are joined end to end.
To find:
- Find the length of the newly formed solid.
- (a) 18 cm
- (b) 9 cm
- (c) 27 cm
- (d) None of the above
Solution:
Concept to be used:
When two or more cubes are arranged horizontally or vertically, a cuboid is formed.
Here,
Cubes are arranged horizontally; as shown in attachment.
Thus,
Height and Breadth of cuboid will remain same but length of cuboid will be double of edge of cube.
Length of cuboid is (9+9) cm
Length of cuboid is 18 cm.
Option a is correct.
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