1. Angle Revision
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2. Angle Revision 65° 124° 56° 101° 79° 36° 120° 120° 24° 36° 120° 25°
110°
25°
60°
25°
70°
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3. 70°
50°
39°
60°
40°
141°
70°
70°
150°
50°
100°
135°
110°
60°
40°
140°
115°
40°
140°
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4. Angle Calculations Angles on a straight line add up to 180°
Angles around a point add up to 360°
The 3 angles of a triangle add up to 180° a b c
a + b + c = 180° a b
a + b = 360° a c b
a + b + c = 180°
The 4 angles of a quadrilateral add up to 360° b c d a
a + b + c + d = 180°
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5. © T Madas