Understanding Elementary Shapes

Name the following angle.

• Acute angle

• Obtuse angle

• Straight angle

• Reflex angle

Define a Right angle

Which types of triangle is given in the image?

• Equilateral Triangle
• Isosceles Triangle
• Scalene Triangle
• Right Triangle

Draw and Label a Complete angle

What is a five sided polygon called?

• Triangle
• Square
• Pentagon
• Hexagon

Describe a polygon.

Describe the triangular region

A straight line that joins the vertex of a triangle with the mid-point of the side opposite to it is called the ___________ of the triangle.

Which of the following is a region bounded by two radii and an arc of a circle?

• Chord
• Diameter
• Sector
• Circumference

What are regular polygons?

• Polygons with all sides and angles equal
• Polygons with all sides equal but angles not equal
• Polygons with all angles equal but sides not equal
• Polygons with neither sides nor angles equal