Units and the scaling rule: percentage change in area 6 PYQs

• If the radius of a circle is doubled, its area becomes:Other exams 2026 · 03 Jan 2026
• The diameter of a circle increases by 20%. By what percent does its area increase?Other exams 2026 · 20 Jan 2026
• If the radius of a circle is decreased by 10%, then by what percentage will its area decrease?SSC Selection Post 2026 · 21 Sep 2026
• If the diameter of a circle is reduced by 20%, then by what percentage does its area decrease?SSC Selection Post 2026 · 16 Sep 2026
• Which of the following best describes the perimeter of a shape?UP Police Constable 2026 · 10 Jun 2026
• If the height of a triangle is increased by 20% and its base is decreased by 15%, then what will be the percentage change in its area?RRB Group D 2026 · 05 Feb 2026

Area of a triangle: base and height, two sides with the included angle, and Heron's formula 6 PYQs

• A triangle has a base of 13.9 cm and a height of 11.3 cm. What is the area of the triangle?UP Police Constable 2026 · 09 Jun 2026
• A question along with a set of statements is given. Find which of the given statements is/are sufficient to answer the given question. Question:…UP Police Constable 2026 · 08 Jun 2026
• A pentagon is divided into three triangles by drawing diagonals from one of its vertices. The areas of two of these triangles are 24 cm² and 30 cm…RRB NTPC 2026 · 19 Jun 2026
• Find the area of a triangle with sides 13 cm, 14 cm and 15 cm.SSC Selection Post 2026 · 22 Sep 2026
• Calculate the area of a triangle with sides 7 cm, 9 cm and 12 cm.SSC Selection Post 2026 · 17 Sep 2026
• The sides of a triangle are 51 cm, 35 cm, and 26 cm. What is the length (in cm) of its altitude corresponding to the side with a length of 35 cm?RRB NTPC 2026 · 17 Jun 2026

Right-angled triangle and Pythagorean triplets 1 PYQs

• A triangular field has sides of 60 m, 80 m, and 100 m. A farmer wants to fence it, leaving a 5 m gate open. What is the cost of fencing at ₹18 per…Delhi Police 2026 · 09 Jan 2026

Isosceles triangle (including the isosceles right triangle) 1 PYQs

• In an isosceles triangle ABC, the equal sides AB and AC are each 10 cm, and the base BC is 12 cm. Find the area of the triangle.RRB NTPC 2026 · 27 Mar 2026

Equilateral triangle 3 PYQs

• A traffic signal board, indicating ‘HOSPITAL AHEAD’, is in the shape of an equilateral triangle with each side measuring 60 cm. Find the area of the…Other exams 2026 · 09 Jan 2026
• The side of an equilateral triangle measures 22.2 cm. Find the perimeter of the triangle.UP Police SI 2026 · 15 Mar 2026
• Find the area of an equilateral triangle with side 8 cm (correct to 2 decimal places).RRB NTPC 2026 · 22 Mar 2026

Any quadrilateral: area through a diagonal 5 PYQs

• A quadrilateral is divided into two right triangles. One has legs 6 cm and 8 cm, the other has legs 5 cm and 12 cm. What is the total area of the…Other exams 2026 · 20 Jan 2026
• A landscape architect is designing a garden in the shape of a quadrilateral where the diagonals intersect at right angles but are not equal in…RRB NTPC 2026 · 13 Jun 2026
• A quadrilateral has one diagonal of length 36 cm, and the perpendiculars from the other two vertices to this diagonal are 20 cm and 10 cm. What is…RRB NTPC 2026 · 07 May 2026
• A field is in the shape of a quadrilateral. One of its diagonals is 10 m long. The perpendicular distances from the other two vertices to this…RRB Group D 2026 · 09 Feb 2026
• The area of a kite with diagonals 16 cm and 20 cm is increased by increasing one diagonal by 25%. What is the new area?Other exams 2026 · 20 Jan 2026