Question

22. Simplify the expression 2(a

2

+ ab) – ab and find its value if, a = 5 and b = 2

23. Draw the Top, Side and Front view of the solid:



Top

Side

Front

24. Give the order of the rotational symmetry of the given figures about the point marked ‘X’

25. Simplify:-

125 X 53 X t5

_______________

503 X t3

SECTION-D

26. From the sum of 4 + 3x and 5 – 4x + 2x2

, subtract the sum of

3x

2

– 5x and –x

2

+ 2x + 5

27. From a circular card sheet of radius 14 cm, two circles of radius 3.5 cm and a rectangle of

length 3 cm and breadth 1cm are removed. (as shown in the adjoining figure). Find the area of the remaining sheet​

Answer 1

Answer:

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Step-by-step explanation:

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