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\ 14-Nov-2025 Bharat Arora Proof-7 Reader’s Sign _______________________ Date __________
3. Match the following shapes with their shadows.
a. b. c. d. e.
i. ii. iii. iv. v.
STRAIGHT AND CuRVED LINES
• Take a thread.
• Hold one end of the thread in each hand.
• Now, stretch the thread tightly.
• The thread forms a straight line.
A piece of thread held tightly
gives an idea of a straight line .
Straight line
• Now, loosen the thread.
• The straight thread now gets curved.
• Such a line is called a curved line.
A piece of thread held loosely
Curved line
gives an idea of a curved line .
Types of Straight Lines
There are three types of straight lines.
l
Horizontal line Vertical line Slanting ine
(Sleeping line) (Standing line)
128 Mathematics 2
