Equations in On...

Which of the following figures are not trapeziums?

What will be the sum of all the interior angles of a nonagon?

Which of the following statements is/are true?

(i) A parallelogram with sides of equal length is called a rhombus.
(ii) If the diagonals of a quadrilateral are of equal length, then it is a rectangle.

Which of the following statements is/are true?

(I) Polygon is a simple closed curve.
(II) Polygon is made up of line segments only.

ABCD is a rectangle, the diagonals of which meet at point O. What is the value of x, if OD = 2x + 4 and OA = 3x + 1? (All dimensions are in cm)

ABCD is a rhombus where AO = 12 cm, BO = 5 cm and one of its side measures 13 cm. What is the value of x + y + z?

What are the values of 'x' and 'y' in the given figure, where ABCD is a parallelogram? (All dimensions are in cm.)

In the given figure, AE is parallel to DC. Find the measure of BCE.

Find the measure of CAB from the given figure.

A parallelogram whose diagonals does not bisect each other at 90° but each angle measures 90° is called

Which of the following is/are true?

(i) is a convex polygon.
(ii) is a concave polygon.

How many diagonals does an octagon have?

In a quadrilateral ABCD, AC = AD, AC = BC, ACB = 40° and CDA = 50°. Find the measures of ABC and DAC, respectively.

Which of the following statements is/are correct for diagonals?

(I) The diagonals of a square are of equal length.
(II) The diagonals of a square bisect each other at right angles.

Which of the following statements is false?