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  • Subjects
  • Maths CBSE Live product
  • Class 9 (2026-27)
  • Measuring Space: Perimeter and Area

Brahmagupta’s Formula

Theory

1. Brahmagupta's formula and Squaring a rectangle

Practice Questions

1. Length of the square flower bed

Difficulty: easy

1
2. Find the semi-perimeter

Difficulty: easy

2
3. Determine the area of the cyclic quadrilateral

Difficulty: easy

2
4. TBQ - Area of an isosceles trapezium

Difficulty: medium

2
5. Area of the pond

Difficulty: medium

2
6. Solar panel - Its length and area

Difficulty: medium

3
7. Rectangular wooden floor

Difficulty: medium

3
8. TBQ - Diagonal of the rhombus

Difficulty: hard

3
9. CBQ - Squaring a rectangle

Difficulty: hard

4

Teacher manual

1. Methodical recommendation
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