NCERT Class 9
In fig. 6.8, x = y and a = b. Prove that l || n.
30
Jun
In fig. 6.8, x = y and a = b. Prove that l || n. In fig. 6.8 x = y and a = b. Prove that l || n. June 30, 2021 Category: Chapter 6 - Lines and Angles , Maths , NCERT Class 9 ,
In fig. 6.7, AB, CD and EF are three lines concurrent at O. Find the value of y.
30
Jun
In fig. 6.7, AB, CD and EF are three lines concurrent at O. Find the value of y. AB CD and EF are three lines concurrent at O. Find the value of y. In fig. 6.7 June 30, 2021 Category: Chapter 6 - Lines and Angles , Maths , NCERT Class 9 ,
A transversal intersects two lines in such a way that the two interior angle on the same side of transversal are equal. Will the two lines always be parallel? Give reason for your answer.
30
Jun
A transversal intersects two lines in such a way that the two interior angle on the same side of transversal are equal. Will the two lines always be parallel? Give reason for your answer. A transversal intersects two lines in such a way that the two interior angle on the same side of transversal are [...]
Let OA, OB, OC and OD are rays in the anticlockwise direction such that ∠ AOB = ∠COD = 100°, ∠BOC = 82° and ∠AOD = 78°. Is it true to say that AOC and BOD are lines?
30
Jun
Let OA, OB, OC and OD are rays in the anticlockwise direction such that ∠ AOB = ∠COD = 100°, ∠BOC = 82° and ∠AOD = 78°. Is it true to say that AOC and BOD are lines? ∠BOC = 82° and ∠AOD = 78°. Is it true to say that AOC and BOD are [...]
If two interior angles on the same side of a transversal intersecting two parallel lines are in the ratio 2:3 then the greater of the two angles is
30
Jun
If two interior angles on the same side of a transversal intersecting two parallel lines are in the ratio 2:3 then the greater of the two angles is If two interior angles on the same side of a transversal intersecting two parallel lines are in the ratio 2:3 then the greater of the two angles [...]
7. In the given figure, ∠Q > ∠R, PA is the bisector of ∠QPR and PM ⊥ QR. Prove that ∠APM = 1/2(∠Q – ∠R).
30
Jun
7. In the given figure, ∠Q > ∠R, PA is the bisector of ∠QPR and PM ⊥ QR. Prove that ∠APM = 1/2(∠Q – ∠R). ∠Q > ∠R 7. In the given figure PA is the bisector of ∠QPR and PM ⊥ QR. Prove that ∠APM = 1/2(∠Q – ∠R). June 30, 2021 Category: Chapter [...]
6. Prove that a triangle must have atleast two acute angles.
30
Jun
6. Prove that a triangle must have atleast two acute angles. 6. Prove that a triangle must have atleast two acute angles. June 30, 2021 Category: Chapter 6 - Lines and Angles , Maths , NCERT Class 9 ,
5. Prove that two lines that are respectively perpendicular to two intersecting lines intersect each other.
30
Jun
5. Prove that two lines that are respectively perpendicular to two intersecting lines intersect each other. 5. Prove that two lines that are respectively perpendicular to two intersecting lines intersect each other. June 30, 2021 Category: Chapter 6 - Lines and Angles , Maths , NCERT Class 9 ,
4. Prove that through a given point, we can draw only one perpendicular to a given line. [Hint: Use proof by contradiction].
30
Jun
4. Prove that through a given point, we can draw only one perpendicular to a given line. [Hint: Use proof by contradiction]. 4. Prove that through a given point we can draw only one perpendicular to a given line. [Hint: Use proof by contradiction]. June 30, 2021 Category: Chapter 6 - Lines and Angles , [...]
3. A transversal intersects two parallel lines. Prove that the bisectors of any pair of corresponding angles so formed are parallel.
30
Jun
3. A transversal intersects two parallel lines. Prove that the bisectors of any pair of corresponding angles so formed are parallel. 3. A transversal intersects two parallel lines. Prove that the bisectors of any pair of corresponding angles so formed are parallel. June 30, 2021 Category: Chapter 6 - Lines and Angles , Maths , [...]