Mathematics
A quadrilateral will be a square, if its:
each angle is 90°
each angle is 90° and the diagonals are equal
all the sides are equal
all the sides are equal and each angle is 90°
Related Questions
In quadrilateral ABCD, AB//DC, then:
∠A + ∠B = 180°
∠A + ∠C = 180°
∠C + ∠D = 180°
∠A + ∠D = 180°
The diagonals of a quadrilateral are equal and bisect each other. The quadrilateral is a :
square
rhombus
parallelogram
rectangle
In parallelogram ABCD, ∠A = 3 times ∠B. Find all the angles of the parallelogram. In the same parallelogram, if AB = 5x - 7 and CD = 3x + 1, find the length of CD.
In parallelogram PQRS, ∠Q = (4x - 5)° and ∠S = (3x + 10)°. Calculate: ∠Q and ∠R.