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22/24 Marks
51%
The diagram shows a star made by surrounding a
regular octagon with triangles.
Explain why angle a must be 135º.
+
I

2224 Marks 51 The Diagram Shows A Star Made By Surrounding A Regular Octagon With Triangles Explain Why Angle A Must Be 135º I class=

Sagot :

Answer:

Step-by-step explanation:

shape Sides Sum of interior angles Each Angle

   

Triangle         3 180°         60°

Quadrilateral 4 360° 90°

Pentagon 5 540° 108°

Hexagon         6 720° 120°

Heptagon  7 900° 128.57...°

Octagon         8 1080° 135°

Nonagon 9 1260° 140°

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