A rectangular field is 112 m long and 100 m wide. Two roads, each 3 m wide are to be constructed at the centre of this field; one is parallel to the length of the field and the other is parallel to the breadth of the field.
Find :
(i) Area of the part of the field, not covered by the roads.
(ii) Cost of constructing the road at ₹ 17 per m2.
| (i) | (ii) | |
| A | 3248 m2 | ₹ 2890 |
| B | 10573 m2 | ₹ 10659 |
| C | 16582 m2 | ₹ 20480 |
| D | 10573 m2 | ₹ 1250 |
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Infinite order of rotational symmetry
Only two lines of symmetry
No symmetry
Only one line of symmetry
Ans 8:
Class : Class 8
All are incorrect.Figure A has order of rotational symmetry = 3Figure B has order of rotational symmetry = 2Figure C has 2 lines of symmetry diagonally from its vertexesFigure D has 4 lines of symmetry.
Ans 9:
Class : Class 8
Figure A Does not have Infinite order of rotational symmetry. Figure B has Two Lines of Symmetry. Figure C has 1 line of symmetry. Figure D has Infinite lines of symmetry. Hence the answer is B
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