triangles chapter boards questions class10 cbse

Triangles Chapter Boards Questions Class 10 CBSE

Here we provide Class 10 Maths important notes,board questions and predicted questions with Answers for chapter Triangles. These important notes,board questions and predicted questions are based on CBSE board curriculum and correspond to the most recent Class 10 Maths syllabus. By practising these Class 10 materials, students will be able to quickly review all of the ideas covered in the chapter and prepare for the Class 10 Board examinations.

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Board Questions

Important Questions

Triangles Boards Questions

2018

Q1 Given △ ABC ~ △ PQR, if

AB / PQ

1 / 3

then find

ar △ ABC / ar △ PQR

Solutions

Q2 (A) In an equilateral triangle △ ABC, D is a point on side BC such that BD = 1/3 BC . Prove that 9(AD)² = 7(AB)²
OR
(B) Prove that in the right angle triangle the square on the hypotenuse is equal to the sum of the squares on the other two sides.

Solutions

2019

Q3 In the given figure ABC is an isosceles triangle triangle right angled at C with AC = 4cm . Find the length of AB

Solutions

Q4 In the given figure, DE || BC. Find the length of side AD, given that AE = 1.8 cm, BD = 7.2 cm and CE = 5.4 cm.

Solutions

Q5 Diagonals of a trapezium PQRS intersect each other at a point O, PQ || RS and PQ = 3RS. Find the ratio of the areas of triangles POQ and ROS

Solutions

Q6 If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points then prove that the other two sides are divided in the same ratio.

Solutions

2020

Q7 Given △ ABC ~ △ PQR, if

AB / PQ

1 / 3

then find

ar △ ABC / ar △ PQR

Solutions

Q8 In fig in △ ABC, DE || BC such that AD = 2.4 cm , AB = 3.2 cm and AC = 8cm , then what is the length of AE ?

Solutions

Q9 The perimeter of two similar triangles are 25 cm and 15 cm respectively, if one side of the first angle is 9 cm then the corresponding side to the second triangle is ___________

Solutions