Assessment No. 1 | Chapter 1 - Plane Figures

Find the measure of an interior angle of a regular tridecagon.

Find the sum of the interior angles of a regular triacontakaitetragon.

Name the polygon with 24 number of sides.

How many sides does "icosikaihenagon" have?

The number of diagonals of a regular polygon is 35. Find the area of the polygon if its apothem measures 10 centimeters.

The ratio of areas between two similar triangles is 1:4. If one side of the smaller triangles is 2 units, find the measure of the corresponding side of the other triangle.

If ABCDE is a regular pentagon and diagonals EB and AC intersect at O, then what is the degree measure of  $\angle$ EOC?

Is it possible to form a triangle with sides 20, 30, and 50 units?

If one side of a triangle is 20 units and the perimeter is 72 units, what is the maximum area that the triangle can have?

Refer to the image.