Sum of interior angles – Simulation 1

Find the measure of x

Figure ABCDE is a regular pentagon inscribed in a circle.

Find the measure of angle A

Figure ABCD is a parallelogram.

Find the measure of angle A

Find the measure of angle ABC

Find the measure of angle ACB

Plug the answer and questions below

In the figure below, r//s, determine the value of x

One carpet has the format of a regular polygon with an external angle of 12 degrees. Determine the number of sides of this polygon.

The internal angle of a regular polygon is 144 degrees. Determine the sum of the internal angles of this polygon.