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D:\Surender Prajapati\CBSE_ICSE_Book_New\CBSE\Grade-7\Math_Genius-7\Open_File\07_Chapter\07_Chapter
\ 15-Nov-2024 Surender Prajapati Proof-5 Reader’s Sign _______________________ Date __________
1. Answer the following questions by choosing correct option.
(a) Which of the following has two endpoints?
(i) A line (ii) A ray (iii) A line segment (iv) A plane
(b) Which of the following has a definite length?
(i) Point (ii) Line segment (iii) Ray (iv) Line
(c) Which of the following statements is true?
(i) A line has a definite length. (ii) A ray AB is denoted by AB .
(iii) A line segment PQ is denoted as PQ . (iv) A ray has two initial points.
2. Look at the given figure and answer the following questions.
C A B l
(a) How many points are there on the given line? Also, name the points.
(b) How many line segments are there on the given line? Name them.
3. Name all possible angles formed by the rays in the figure.
B C
A
O D
4. Match the following.
Measure of Angle Type of Angle
(a) 180° (i) Complete angle
(b) 240° (ii) Obtuse angle
(c) 0° (iii) Straight angle
(d) 90° (iv) Acute angle
(e) 360° (v) Reflex angle
(f) 150° (vi) Zero angle
(g) 45° (vii) Right angle
Line and Line Segment
Let’s start with what you have learnt about lines and line segments earlier.
Line
A line is a collection of infinite points. A line has no end points. It can extends indefinitely in both
directions.
l
Mathematics-7 148

