If D is midpoint of BC and area (ΔABC) = 20 sq.unit then area (Δ ABD) =
40 sq. units
10 sq. units
5 sq. units
20 sq. units
If D is midpoint of BC and area ΔABD = 1/√2 sq.units, then area ΔABC is
1/√2 sq. units
√2 sq. units
2 sq.unit
None of these
If BD = 12 cm, AL = 6 cm and CM = 4 cm. Then area (ABCD) =
60 sq.cm
30 sq.cm
90 sq.cm
120 sq. cm
Three angles of a quadrilateral are 75o, 90o and 75o. The fourth angle is
90o
95o
105o
120o
In the figure ABCD is a parallelogram and AEB is a triangle. If ar ||gm ABCD = 172.6 sq.cm Then ar ΔAEB =
86.3 sq.cm
354.2 sq.cm
172.6 sq.cm
Cannot be determend
The figure obtained by joining the mid points of the sides of a rhombus, taken in order, is
A rhombus
A rectangle
A square
Any parallelogram
In a parallelogram if diagonals are equal in length then it is
Rhombus
Square
Rectangle
Consecutive angles of a parallelogram are
Supplementary
Complementary
Equal
Quadrilateral formed by joining the midpoints of any quadrilateral is always
a rectangle
a square
a rhombus
a parallelogram
ABCD is a cyclic quadrilateral ∠A : ∠C = 3 : 2 ∠B : ∠D = 4 : 1 then ∠D =
30o
36o
45o
