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Online class plan, , Class-7, , Sub- Maths Date: 21/01/22 Day: Friday, Chapter- Perimeter and area, , Topic- Area of parallelogram, , Homework:, , 2. The adjacent sides of a parallelogram are 36 cm and 27 cm in length. If the, perpendicular distance between the shorter sides is 12 cm, find the distance, between the longer sides., , 2. The area of a parallelogram and a square are the same. If the perimeter of, the square is 160 m and the height of the parallelogram is 20 m, find the, length of the corresponding base of the parallelogram., , 3. The area of arhombus is 42 m2. If its perimeter is 24 m, find its altitude., , 4. The base and the corresponding altitude of a parallelogram are 10 cm and, 12 cm respectively. If the other altitude is 8 cm, find the length of the other, parallel side., , 5. A floral design on the floor of a building consists of 3000 tiles. Each tile is, in the shape of a parallelogram of altitude 3 cm and base 5 cm. Find the cost, of polishing the design at the rate of 80 paise per dm?., , 6. In the given figure, ABCD is a parallelogram, CE LAB and BF LAD. If AB = 12, cm, AD = 10 cm and CE-8 cm, find BF., , 7. Find the altitude of a parallelogram of area 2.34 m? and base 18 dm., Height, 8. Find the area of a parallelogram with base 7 cm and altitude 4.3 cm., , 9. The ratio of two adjacent sides of a parallelogram is 2: 3. Its perimeter is 50, cm. Find its area if altitude corresponding to larger side is 10 cm.