Forum

Lines & Angles

Two lines are respectively perpendicular to two parallel lines. Show that they are parallel to each other.

05/11/2024

Mathematics

9th

Lines & Angles

A triangle ABC is right angled at A. L is a point on BC such that AL ⊥ BC. Prove that ∠ BAL = ∠ ACB.

05/11/2024

Mathematics

9th

Lines & Angles

The angles of a triangle are in the ratio 2 : 3 : 4. Find the angles of the triangle.

05/11/2024

Mathematics

9th

Lines & Angles

Two lines l and m are perpendicular to the same line n. Are l and m perpendicular to each other? Give reason for your answer.

05/11/2024

Mathematics

9th

Lines & Angles

If one of the angles formed by two intersecting lines is a right angle, what can you say about the other three angles? Give reason for your answer.

05/11/2024

Mathematics

9th

Lines & Angles

Two adjacent angles are equal. Is it necessary that each of these angles will be a right angle? Justify your answer.

05/11/2024

Mathematics

9th

Lines & Angles

How many triangles can be drawn having its angles as 53°, 64° and 63°? Give reason for your answer.

05/11/2024

Mathematics

9th

Lines & Angles

How many triangles can be drawn having its angles as 45°, 64° and 72°? Give reason for your answer.

05/11/2024

Mathematics

9th

Lines & Angles

Can a triangle have two obtuse angles? Give reason for your answer.

05/11/2024

Mathematics

9th

Lines & Angles

Can a triangle have all angles less than 60°? Give reason for your answer.

05/11/2024

Mathematics

9th