Solutions of Right Triangles Class-9 Concise Selina ICSE Mathematics Solutions Chapter-24 .  We provide step by step Solutions of Exercise / lesson-24 Solutions of Right Triangles for ICSE Class-9 Concise Selina Mathematics by R K Bansal.

Our Solutions contain all type Questions with Exercise-24, to develop skill and confidence. Visit official Website CISCE for detail information about ICSE Board Class-9 Mathematics .

## Solutions of Right Triangles Class-9 Concise Selina ICSE Mathematics Solutions Chapter-24

### Exercise 24

Question 1

Fin ‘x’ if:

(i) (ii)

(iii) Question 2

Find angle ‘A’ if:

(i) (ii)

(iii) Question 3

Find angle ‘x’ if: Question 4

(i) (ii)

Question 5

Given: ABC = 60o.

DBC = 45o

And BC = 40 cm Question 6

Find the lengths of diagonals AC and BD. Given AB = 60 cm and BAD = 60o. Question 7

Find AB. Thus AB = AC + CD + BD = 54.64 cm.

Question 8

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

(i) length of AB

(ii) distance between AB and DC. First draw two perpendiculars to AB from the point D and C respectively. Since AB|| CD therefore PMCD will be a rectangle.
Consider the figure,

Question 9

Use the information given to find the length of AB. Question 10

Find the length of AB. Question 11

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 = 60o and ACD = 45o. Calculate:

(i) AB(ii) AC(iii) AE Question 12

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

Calculate:

(i) BE (ii) AC Question 13

Find

(i) BC

(iii) AC Question 14

In right-angled triangle ABC; B = 90o. Find the magnitude of angle A, if:

(i) AB is √3 times of BC.

(ii) BC is √3 times of AB.

Question 15

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

Given that the ladder makes an angle of 30o with the ground and reaches upto a height of 15 m of the tower which is shown in the figure below:

Question 16

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 60o with the level ground.

Question 17

Find AB and BC, if:

(i) (ii)

(iii) Question 18

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

(i) (ii)

Question 19

If tan xo =, 5 /12

tan yo = 3/4 and AB = 48 m; find the length of CD Question 20

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

We also know that in rhombus diagonals bisect each other perpendicularly and diagonal bisect the angle at vertex.
Hence POR is a right angle triangle and

— End of Solutions of Right Triangles Class-9 Concise Selina Solutions :–

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