DL and BM are the heights on sides AB and AD respectively of parallelogram ABCD (Fig 11.24). If the area of the parallelogram is 1470 cm², AB = 35 cm and AD = 49 cm, find the length of BM and DL.

Solution:

AB = 35 cm, AD = BC = 49 cm and Area = 1470 cm²

Area of parallelogram ABCD = Base (AB) × Height (DL)

1470 cm² = 35 cm × DL

DL = 1470 cm² / 35 cm

DL = 42 cm

Area of parallelogram ABCD = Base (AD) × Height (BM)

1470 cm² = 49 cm × BM

BM = 1470 cm² / 49 cm

BM = 30 cm

☛ Check: NCERT Solutions for Class 7 Maths Chapter 11

Video Solution:

DL and BM are the heights on sides AB and AD respectively of parallelogram ABCD (Fig 11.24). If the area of the parallelogram is 1470 cm², AB = 35 cm and AD = 49 cm, find the length of BM and DL

Class 7 Maths NCERT Solutions Chapter 11 Exercise 11.2 Question 6

Summary:

DL and BM are the heights on sides AB and AD respectively of parallelogram ABCD. If the area of the parallelogram is 1470 cm², AB = 35 cm and AD = 49 cm, the length of BM is 30 cm and DL is 42 cm.

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