GCSE Maths (Geometry)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| How to find the midpoint of a line segment (Grade C) | (Average of x coordinates Average of y coordinates)
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| Angles in a triangle | Angles in a triangle = 180°
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| Angles on a straight line | Angles on a straight line = 180°
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| Angles in a quadrilateral | Angles in a quadrilateral = 360°
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| Angles around a point | Angles around a point = 360°
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| Relationship between exterior angles and opposite angles of a triangle | Exterior angle = sum of opposite interior angles
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| What is special about isosceles triangles | They have two sides and angles the same
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| Name three types of angles on parallel lines that are equal | Vertically Opposite,
Alternate
Corresponsing
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| Name the type of angles that = 180° on parallel lines | Interior
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| What are parallelograms? | Parallelograms are quadrilaterals made from two sets of parallel lines
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| In a parallelogram, opposite angles... | ...are equal
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| In a parallelogram, neighboring angles... | ...add up to 180°
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| What is a shape with 9 sides called? | A nonagon
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| In a polygon (regular or irregular) the sum of the exterior angles =... | 360°
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| In a polygon (regular or irregular) the sum of the interior angles =... | (number of sides - 2) X 180°
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| In a REGULAR polygon, exterior angle =... | 360° / Number of Sides
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| In a REGULAR polygon, interior angle =... | 180° - Exterior Angle
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| Area of sector =... | x / 360° X Area of full Circle
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| Length of arc =... | x / 360° X Circumference of full Circle
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| How to find the area of a segment |
3. Area of segment = Area of sector - area of triangle
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| Why are these bearings wrong: 3°, 55° 78°, 9° | Because they need to be written to three figures (eg. 003°, 055°, 078°, 009°)
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| If two perpendicular lines have the gradients M1 & M2 then... | M2 will be the reciprical of M1
M1 X M2 = -1
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Created by:
bhbryden
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