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(b)
(a) A rectangular park length is 40m and breadth is 35m, A path 3m wide constructed out side the park.
The area of the path is:
(1) 486m
(ii) 480m
)
(iii) 450m
The side of a rhombus is 8cm and its altitude is 2cm. Its area will be:
(iv) 400m
(i) 16cm
()
(ii) 12cm
(iii) 8cm
(iv) 10cm
) A square is of side 8cm, its area is.
(i) 16cm
(ii) 6.4m
(iii) 64m
(iv) 64cm
(d) The surface area of a cube is 384 cm’. Its volume.
(i) 512 cm
(ii) 256cm
(iii) 384cm
)
O (iv) 320cm
O
(e) The area of base of a circular cylinder is 35cm’ and its heights is 8cm. The volume of cylinder is.
(i) 140cm
(ii) 280cm
(iii) 420 cm
(iv) 210cm
. O o
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Answer:
390
Step-by-step explanation:
Given:
Length of the park =35m
Breadth of the park =18m
Area f the park = Length × Breadth
=35×18
=630m
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Length of the park with grass =(35−5)=30m
Breadth of the park with grass =(18−5)m=13m
Area of park to be laid with grass =(30×13)=390m
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Area of path without grass = Area of the whole park area of park grass
=630−390
=240m
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Hence, area of the park to be laid with grass =390m
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