Class 7, Maths, Chapter 11, Exercise 11.2 Solutions

Q.1. Find the area of each of the following parallelograms:

Q.2. Find the area of each of the following triangles:

Q.3. Find the missing values:

Q.4. Find the missing values:

Q.5. PQRS is a parallelogram (Figure). QM is the Height from Q to SR and QN is the Height from Q to PS. If SR = 12 cm and QM = 7.6 cm. Find:

(a) the area of the parallelogram PQRS

(b) QN, if PS = 8 cm

Q.6. DL and BM are the Height s on sides AB and AD respectively of parallelogram ABCD (Fig 11.24). If the area of the parallelogram is 1470 cm^{2},AB = 35 cm and AD = 49 cm, find the length of BM and DL.

Q.7. ∆ABC is right angled at A (Figure).AD is perpendicular to BC. If AB = 5 cm, BC = 13 cm and AC = 12 cm, Find the area of ∆ABC. Also find the length of AD.

Q.8. ∆ABC is isosceles with AB =AC = 7.5 cm and BC = 9 cm (Figure). The Height AD from A to BC, is 6 cm. Find the area of ∆ABC. What will be the Height from C to AB i.e., CE ?

NCERT Solutions For Class 7 Maths, Chapter 11, Perimeter and Area (All Exercises)