RBSE Solutions for Class 7 Maths Chapter 7 Lines and Angles In Text Exercise is part of RBSE Solutions for Class 7 Maths. Here we have given Rajasthan Board RBSE Class 7 Maths Chapter 7 Lines and Angles In Text Exercise.
|Chapter Name||Lines and Angles|
|Exercise||In Text Exercise|
|Number of Questions||14|
Rajasthan Board RBSE Class 7 Maths Chapter 7 Lines and Angles In Text Exercise
Look at the following angles and identify (RBSESolutions.com) whether it is an acute angle, a right angle or an obtuse angle.
(i) Obtuse angle
(ii) Right angle
(iii) Acute angle
What will be the (RBSESolutions.com) complementary angle of 45°?
Let x is the complement of 45°
Then x + 45° = 90°
⇒ x = 90° – 45° = 45°
∴ Complement angle of 45° = 45°
Which of the following (RBSESolutions.com) pairs angles are complement angles :
(i) 40° + 50° = 90° are complement angles,
(ii) 30° + 50° = 80° 90° not complement angles,
(iii) 75° + 15° = 90° complement angles.
Which of the following (RBSESolutions.com) pairs of angles are supplementary.
(i) 50° + 130° = 180° supplement angles.
(ii) 105° + 75° = 380° supplement angles.
(iii) 45° + 100° = 145° * 180° not supplement angles.
In the given figures you can (RBSESolutions.com) observe two angle placed next to each other. Were else you find two angles placed next toe ach other?
Wind mill, Comer of walls.
Look at the following (RBSESolutions.com) figures carefully and identify the parallel lines :
Parallel lines are (RBSESolutions.com) shown by arrows :
Look at the figures given (RBSESolutions.com) below carefully and identify the intersecting lines.
intersecting lines (RBSESolutions.com) are shown by arrows.
Do And Learn
Can two acute angles be (RBSESolutions.com) complementary angles of each other?
Yes, two acute angels can be complement to each other if their sum is 90°.
Can two obtuse angles be complementary angles of each other?
No, two obtuse angles can not be complement to each other because their sum is never 90°.
What is the (RBSESolutions.com) complementary angle of a right angle?
0° is the complement angle of 90°.
How many transversal lines can be drawn for a pair of lines?
An infinite number of transversals can be drawn for a pair of lines.
If a transversal line is (RBSESolutions.com) drawn on three lines, then how many points of intersection will we get?
If a transversal line intersects three straight lines then three points A, B and C will be find.
Identify the pairs of angle in (RBSESolutions.com) each figure and write their name.
(i) ∠3 and ∠4 are alternate angles.
(ii) ∠7 and ∠8 are alternate angles.
(iii) ∠1 and ∠2 are linear pair.
(iv) ∠5 and ∠6 are internal angles.
(v) ∠9 and ∠10 are corresponding angles.
Look at the (RBSESolutions.com) following and answer :
l ॥ m, L Transversal ∠x = ?
L1, L2 are two lines (RBSESolutions.com) and t is transversal line Is ∠1 = ∠2 ?
(i) In figure, l ॥ m and L in a transversal line
∴ ∠x = 70°(altemate angle)
(ii) In figure ∵ L1 ≠ L2
∴ ∠1 ≠ ∠2
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