Different kinds of quadrilaterals and how to get for the missing angle

2. QUADRILATERALS

3. Quadrilateral
 A closed plane geometric figure with 4 sides
and 4 angles.
 360 Degrees- the sum of all the interior
angles of a quadrilateral.

4. Different kinds of Quadrilaterals
Finding for the unknown angle

5. Different Kinds of Quadrilaterals
 Square
 Rectangle
 Rhombus
 Parallelogram
 Trapezoid

6. Square
 Has 4 equal sides
 Has 4 equal angles.
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7. Rectangle
 Opposite sides equal
 Has 4 right angles
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8. Rhombus
 Has 4 equal sides
 Opposite sides parallel
 Opposite angles equal
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9. Parallelogram
 Opposite sides are equal and parallel
 Opposite angles equal
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10. Trapezoid
 One pair of parallel sides.
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11. How to find for the unknown
angle?
 Identify the given angles.
 Add the given angles.
 Subtract the sum to 360 degrees.

12.  Given Angles
- 100º
- 60º
- 95º
 Add the givens
100 + 60 + 95 = 255º
 Subtract to 360º
360 – 255 = 105

13. Solve for the 4th angle.
1.) 25º, 34º, 29º
2.) 41º, 44º, 59º
3.) 26º, 62º, 31º
4.) 36º, 48º, 33º
5.) 35º, 19º, 27º