Triangles
CDS Maths. Try each one first, then open its answer.
Top 10 CDS PYQs to practise first
The questions and kinds of question asked most often come first. Each one says how often and in which papers.
Question 1
This type asked 6 times: CDS 1 2019, CDS 1 2021, CDS 1 2023, CDS 2 2023, CDS 1 2025, CDS 2 2025. This one: CDS 2 2025 See all 6 of this type
72is a triangle right angled at . is a point on such that is perpendicular to . If and , then what is equal to?Tap an option to check your answer.
Question 2
This type asked 5 times: CDS 2 2020, CDS 1 2022, CDS 1 2025, CDS 1 2026, CDS 2 2026. This one: CDS 2 2026 See all 5 of this type
74In a triangle ABC, AD is the bisector of angle A that meets BC at D. If AB = 21 cm, DC = 20 cm and AB : AC = 3 : 4, then what is equal to ?Tap an option to check your answer.
Question 3
This type asked 5 times: CDS 2 2018, CDS 1 2021, CDS 1 2022, CDS 2 2022, CDS 2 2026. This one: CDS 2 2026 See all 5 of this type
63A Question is given followed by two Statements I and II. Consider the Question and the Statements and mark the correct option. Question : ABC is a triangle right-angled at A and AD is perpendicular to BC. If AD = 7.2 cm, then what is BD CD equal to ? Statement I : AB : AC = 3 : 4. Statement II : BC = 15 cm. Which one of the following is correct in respect of the above Question and Statements ?Tap an option to check your answer.
Question 4
Asked 4 times: CDS 2 2018*, CDS 1 2021*, CDS 1 2022*, CDS 2 2022 (* = numbers or wording changed that year) See all 4 times it was asked
76Triangle ABC is right-angled at A and AD is perpendicular to BC. If BD = 7.5 cm and DC = 10 cm, then what is AD equal to ?Tap an option to check your answer.
Question 5
This type asked 4 times: CDS 2 2018, CDS 1 2019, CDS 1 2021, CDS 2 2026. This one: CDS 2 2026 See all 4 of this type
68Consider the following statements : I. The areas of two similar triangles are in the ratio of the squares of the corresponding medians. II. The areas of two similar triangles are in the ratio of the squares of the corresponding heights. Which of the statements given above is/are correct ?Tap an option to check your answer.
Question 6
This type asked 4 times: CDS 2 2020, CDS 2 2021, CDS 2 2025, CDS 1 2026. This one: CDS 1 2026 See all 4 of this type
56ABC is a triangle right-angled at B. Points M and N trisect BC. If cm and cm, then what is AC equal to ?Tap an option to check your answer.
Question 7
This type asked 4 times: CDS 2 2016, CDS 1 2017, CDS 1 2019, CDS 2 2023. This one: CDS 2 2023 See all 4 of this type
56ABC is a triangle with sides AB = 41 cm, BC = 28 cm and CA = 15 cm. If D, E and F are the mid-points of AB, BC and CA respectively, then what is the area of the triangle DEF ?Tap an option to check your answer.
Question 8
This type asked 3 times: CDS 2 2017, CDS 1 2021, CDS 2 2026. This one: CDS 2 2026 See all 3 of this type
70In a triangle ABC, AB = 8 cm and D and E are points on AB and AC respectively such that DE is parallel to BC. If BC = 5DE, then what is AD BD equal to ?Tap an option to check your answer.
Question 9
This type asked 3 times: CDS 2 2017, CDS 1 2018, CDS 1 2026. This one: CDS 1 2026 See all 3 of this type
49ABC is a triangle right-angled at B with sides , and . Let p be the length of the perpendicular from B to AC. Which of the following statements is/are correct ? I. II. Select the answer using the code given below :Tap an option to check your answer.
Question 10
This type asked 3 times: CDS 1 2017, CDS 2 2018, CDS 1 2025. This one: CDS 1 2025 See all 3 of this type
18The measure of an angle formed by the bisectors of the angles A and C of the triangle ABC is . What is the measure of the angle B ?Tap an option to check your answer.