Activity 1.
1 Draw a thangle Use a protractor, determine the measure of each interior angles and determine the sum of the interior angle
3 Draw a pentagon Then fix a vertex and draw diagonals from this vertex Then answer the following
c Without actual measuring, can you determine the sum of the interior angles of quadrilateral?
c Without actual measuring can you determine the sum of the interior angles of quadrilateral?
2 Draw a quadrilateral Then fix a vertex and draw diagonals from this vertex Then answer the following
b How many triangles are formed by this these diagonal(s)?
bHow many triangles are formed by this these diagonal(s)?
a How many diagonals are drawn from the fixed vertex?
a How many diagonals are drawn from the fixed vertex?
5 Search for pattern and complete the table below
4 Continue this with hexagon and heptagon
