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Mathematics : Areas of Parallelograms and Triangles

Multiple Choice Questions

81. The areas of a parallelogram and a triangle are equal and they lie on the same base. If the altitude of the parallelogram is 2 cm, then the altitude of triangle is

1 cm
1 cm
2 cm
2 cm

305 Views

82. In the following figure, ABCD is a parallelogram. DE ≅ AB and BF ≅ AD. If AB = 12 cm, DE = 6 cm and AD = 8 cm, find BF.

8 cm
6 cm
12cm
12cm

229 Views

83. In the following figure, find the area of quad. ABCD.

7 square units
12 square units
6 square units
6 square units

100 Views

84. In ΔABC, E is the mid-point of median AD. Then the ratio of areas of ABED to area of ΔABC is

1 : 2
2 : 1
4 : 1
4 : 1

99 Views

85. Two parallelograms are on equal bases and between the same parallels. The ratio of their areas is

1 : 2
1 : 1
2 : 1
2 : 1

350 Views

86. If a triangle and a parallelogram are on same base and between same parallels, then the ratio of the area of the triangle to the area of the parallelogram is:

1 : 3
1 : 2
3 : 1
3 : 1

459 Views

87. In given figure, ABCD is a parallelogram. If ar(ABFC) = 40 cm², then ar(ΔAEB) is equal to:

20 cm²
40 cm²
80 cm²
80 cm²

242 Views

88. In a ΔABC, AD is a median. E is the midpoint of the median AD. If area (ABED) = 20 cm², then area (ΔABC) will be

10 cm²
5 cm²
60 cm²
60 cm²

102 Views

89. If length of the diagonal of a square is 8 cm, then its area will be

64 cm²
32 cm²
16 cm²
16 cm²

124 Views

90. If a triangle and a rhombus are on the same base and between the same parallels, then ratio of area of triangle and area of rhombus are in the ratio:

1 : 1
1 : 2
1 : 3
1 : 3

618 Views