Home | | **Maths 9th std** | Exercise 7.1: Application of Heronâ€™s Formula in Finding Areas of Quadrilaterals

Maths : Mensuration: Book Back, Exercise, Example Numerical Question with Answers, Solution: Exercise 7.1: Application of Heronâ€™s Formula in Finding Areas of Quadrilaterals

**Application of Heronâ€™s Formula in Finding
Areas of Quadrilaterals**

**Exercise 7.1**

**1. Using Heronâ€™s formula, find the area
of a triangle whose sides are**

**(i) 10 cm, 24 cm, 26 cm**

**2. The sides of the triangular ground
are 22 m, 120 m and 122 m. Find the area and cost of levelling
the ground at the rate of â‚¹ 20 per m^{2}.**

**3. The perimeter of a triangular plot
is 600 m. If the sides are in the ratio 5:12:13, then find the area of the
plot.**

**4. Find the area of an equilateral triangle
whose perimeter is 180 cm.**

**5. An advertisement board is in the form
of an isosceles triangle with perimeter 36 m and each of the equal sides are
13 m. Find the cost of painting it at â‚¹ 17.50 per square metre.**

**6. Find the area of the unshaded region.**

**7. Find the area of a quadrilateral ABCD
whose sides are AB **

**8. A park is in the shape of a quadrilateral.
The sides of the park are 15 m, 20 m, 26 m and 17 m
and the angle between the first two sides is a right angle. Find the area of the
park.**

**9. A land is in the shape of rhombus.
The perimeter of the land is 160 m and one of the diagonal is 48 m.
Find the area of the land.**

**10. The adjacent sides of a parallelogram
measures 34 m, 20 m and the measure of one of the diagonal is 42 m.
Find the area of parallelogram.**

Tags : Numerical Problems with Answers, Solution | Mensuration | Maths , 9th Maths : UNIT 7 : Mensuration

Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail

9th Maths : UNIT 7 : Mensuration : Exercise 7.1: Application of Heronâ€™s Formula in Finding Areas of Quadrilaterals | Numerical Problems with Answers, Solution | Mensuration | Maths

**Related Topics **

Privacy Policy, Terms and Conditions, DMCA Policy and Compliant

Copyright Â© 2018-2023 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.