Samacheer Kalvi 9th Maths Solutions Chapter 7 Mensuration Ex 7.1

Samacheer Kalvi 9th Maths Solutions Chapter 7 Mensuration Ex 7.1

Tamilnadu Samacheer Kalvi 9th Maths Solutions Chapter 7 Mensuration Ex 7.1

9th Maths Mensuration Exercise 7.1 Question 1.
Using Heron’s formula, find the area of a triangle whose sides are
(i) 10 cm, 24 cm, 26 cm
(ii) 1.8 m, 8 m, 8.2 m

Solution:

Exercise 7.1 Class 10 Samacheer Kalvi Question 7.
Find the area of a quadrilateral ABCD whose sides are AB = 13 cm, BC = 12 cm, CD = 9 cm, AD = 14 cm and diagonal BD = 15 cm
Solution:

Samacheer Kalvi 9th Maths Book Solutions Question 8.
A park is in the shape of a quadrilateral. The sides of the park are 15 m, 20m, 26 m and 17 m and the angle between the first two sides is a right angle. Find the area of the park.
Solution:

Samacheer Kalvi Guru 9th Maths Guide Question 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.
Solution:
Perimeter of the rhombus land = 160 m

Exercise 7.1 Class 9 Question 10.
The adjacent sides of a parallelogram measures 34 m, 20 m and the measure of the diagonal is 42 m. Find the area of Parallelogram.
Solution: