Q1 C of 59 Page 195

Let’s write the sum of the measurement of the interior angles of the following polygons:

heptagon


For a heptagon we know that it has seven sides.

So let us substitute n = 7 in the above formula.


Sum of interior angles is given as = (2 × 7 – 4) × 90


= (14 – 4) × 90


= 10 × 90


= 900°


More from this chapter

All 59 →
1 A

Let’s write the sum of the measurement of the interior angles of the following polygons:

Pentagon


 1 B

Let’s write the sum of the measurement of the interior angles of the following polygons:

hexagon


 1 D

Let’s write the sum of the measurement of the interior angles of the following polygons:

octagon


 1 E

Let’s write the sum of the measurement of the interior angles of the following polygons:

Decagon