how many internal triangles in this shape?
3
How many internal triangles in this shape?
5
How many internal triangles in this shape?
4
How many internal triangles in this shape?
3
What is the sum of the interior angles in this shape?
7-2 = 5 triangles x 180 = 900 degrees
What is the sum of the interior angles in this shape?
6 - 2 = 4 triangles x 180 = 720 degrees
What is the sum of the interior angles in this shape?
5 - 2 = 3 triangles x 180 = 540 degrees
What is this shape called?
pentagon
What is this shape called?
pentagon
What is this shape called?
Nonagon
What is the sum of the interior angles in this shape?
9-2 = 7 sides x 180 = 1260 degrees
What is this shape called?
Hexagon
What is the sum of interior angles in this shape?
6-2 = 4 triangles x 180 = 720 degrees
What is the size of the missing angle? **extra**
163 degrees (5 - 2 = 3 triangles x 180 = 540. Sum of other = 121 + 68 + 103 + 85 = 377. 540-377 =163)
What is the size of the missing angle? **extra**
168 degrees (6 - 2 = 4 triangles x 180 = 720. Sum of other = 103+ 87 + 84 + 128 + 150 = 552. 720 - 552 =168)
