Selina solutions for Concise Mathematics [English] Class 9 ICSE chapter 24 - Solution of Right Triangles [Simple 2-D Problems Involving One Right-angled Triangle] [Latest edition]

Find 'x', if :

Find 'x', if :

Find 'x', if:

Find angle 'A' if :

Find angle 'A' if :

Find angle 'A' if:

Find angle 'x' if :

Find AD, if :

Find AD, if:

Find the length of AD.
Given: ∠ABC = 60^o.
∠DBC = 45^o
and BC = 40 cm.

Find the lengths of diagonals AC and BD. Given AB = 60 cm and ∠ BAD = 60°.

Find AB.

In trapezium ABCD, as shown, AB // DC, AD = DC = BC = 20 cm and ∠ A = 60°. Find: length of AB

In trapezium ABCD, as shown, AB // DC, AD = DC = BC = 20 cm and A = 60^°. Find: distance between AB and DC.

Use the information given to find the length of AB.

Find the length of AB.

In the given figure, AB and EC are parallel to each other. Sides AD and BC are 2 cm each and are perpendicular to AB.

Given that ∠ AED = 60° and ∠ ACD = 45°. Calculate: AB.

In the given figure, AB and EC are parallel to each other. Sides AD and BC are 2 cm each and are perpendicular to AB.

Given that ∠AED = 60° and ∠ACD = 45°. Calculate: AC

In the given figure, AB and EC are parallel to each other. Sides AD and BC are 2 cm each and are perpendicular to AB.

Given that ∠ AED = 60° and ∠ ACD = 45°. Calculate: AE.

In the given figure, ∠B = 60°, AB = 16 cm and BC = 23 cm,
Calculate:

1. BE
2. AC

Find: BC

Find: AD

Find: AC

In right-angled triangle ABC; ∠ B = 90°. Find the magnitude of angle A, if: AB is √3 times of BC.

In right-angled triangle ABC; ∠B = 90°. Find the magnitude of angle A, if:
BC is `sqrt(3)` times of AB.

A ladder is placed against a vertical tower. If the ladder makes an angle of 30° with the ground and reaches upto a height of 15 m of the tower; find length of the ladder.

A kite is attached to a 100 m long string. Find the greatest height reached by the kite when its string makes an angles of 60° with the level ground.

Find AB and BC, if:

Find AB and BC, if:

Find AB and BC, if:

Find PQ, if AB = 150 m, ∠ P = 30° and ∠ Q = 45°.

Find PQ, if AB = 150 m, ∠P = 30° and ∠Q = 45°.

.

If tan x° = `(5)/(12)`,

tan y° = `(3)/(4)` and AB = 48 m; find the length of CD.

The perimeter of a rhombus is 96 cm and obtuse angle of it is 120°. Find the lengths of its diagonals.