1). The side of a rhombus whose diagonals are 16 cm and 12 cm respectively, is
| A). 14 cm |
| B). 12 cm |
| C). 10 cm |
| D). 8 cm |
|
2). If diagonals of a parallelogram are perpendicular, then it is a
| A). rhombus |
| B). rectangle |
| C). quadrilateral |
| D). none of these |
|
3). If a triangle and a rectangle have equal areas and equal altitude, then base of the triangle is equal to
| A). base of the rectangle |
| B). twice the base of the rectangle |
| C). thrice the base of the rectangle |
| D). four times the base of the rectangle |
|
4). The number of sides of a regular polygon each of whose angles measures \( \Large 156 ^{\circ} \) is
| A). 8 |
| B). 10 |
| C). 12 |
| D). 15 |
|
5). O is the point of intersection of the diagonals AC and BD of a rhombus ABCD. P, Q, R are points on OC, OB and OA respectively such that OP = 1 unit, OQ = 2 units and OR = 4 units. The angle PQR is
| A). a right angle |
| B). less than 90 \( ^{\circ} \) |
| C). greater than 90\( ^{\circ} \) |
| D). between 0\( ^{\circ} \) |
|
6). The area of a rhombus is \( \Large 120 cm^{2} \). If one of its diagonals is of length 10 cm, then length of one of its sides is
| A). 12 cm |
| B). 13 cm |
| C). 24 cm |
| D). \( \Large 22\sqrt{3} \) cm |
|
7). ABCD is a rhombus and O is the point of intersection of the diagonals AC and BD. The locus of a point which is equidistant from AB and AD is
| A). AC |
| B). BD |
| C). CB |
| D). CD |
|
8). If one diagonal of a parallelogram is 70 cm and perpendicular distance of this diagonal from either of the outlying vertices is 27cm, then area of parallelogram (in \( \Large cm^{2} \) is
| A). 1800 |
| B). 1836 |
| C). 1890 |
| D). 1990 |
|
9). The area of a trapezium is \( \Large 275 cm^{2} \). If its parallel sides are in the ratio 2 : 3 and perpendicular distance between them is 5 cm, then smaller of the parallel sides is
| A). 36 cm |
| B). 40 cm |
| C). 44 cm |
| D). 48 cm |
|
10). If each angle of a polygon is \( \Large 165 ^{\circ} \), then number sides of the polygon is
| A). 24 |
| B). 30 |
| C). 35 |
| D). 40 |
|
