Gr 9 Quadrilaterals

Name 3 quadrilaterals that have diagonals that are congruent.

One angle of a quadrilateral is of 108º and the remaining three angles are equal. Find each of the three equal angles.

A diagonal of a rectangle is inclined to one side of the rectangle at 25º. The acute angle between the diagonals is

The angle between two altitudes of a parallelogram through the vertex of an obtuse angle of the parallelogram is 60º. Find the angles of the parallelogram.

In a parallelogram, opposite angles are:

The diagonals AC and BD of a parallelogram ABCD intersect each other at the point O. If ∠DAC = 32º and ∠AOB = 70º, then ∠DBC is equal to

Angles of a quadrilateral are in the ratio 3 : 4 : 4 : 7. Find all the angles of the quadrilateral.

ABCD is a rhombus such that ∠ACB = 40º. Then ∠ADB is

Each angle of the rectangle is:

The diagonals of a parallelogram:

If angles A, B, C and D of the quadrilateral ABCD, taken in order, are in the ratio3:7:6:4, then ABCD is a

ABCD is a trapezium in which AB || DC and ∠A = ∠B = 45º. Find angles C and D of the trapezium.

How many degrees does a decagon have?

Three angles of a quadrilateral are 75º, 90º and 75º. The fourth angle is

If in a parallelogram its diagonals bisect each other and are equal then it is a,

If ABCD is a trapezium in which AB || CD and AD = BC, then:

ABCD is a parallelogram. If its diagonals are equal, then find the value of ∠ABC.

The consecutive angles of a parallelogram are

Find the measure of each exterior angle of a regular octagon.

If in a parallelogram its diagonals bisect each other at right angles and are equal, then it is a

What is the sum of the exterior angles of a 100-gon?

Find the measure of each interior angle in a regular hexagon.

A regular polygon has a 10˚ exterior angle. How many sides does it have?