Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# GCSE Maths Geometry

### GCSE Maths (Geometry)

Question | Answer |
---|---|

How to find the midpoint of a line segment (Grade C) | (Average of x coordinates Average of y coordinates) |

Angles in a triangle | Angles in a triangle = 180° |

Angles on a straight line | Angles on a straight line = 180° |

Angles in a quadrilateral | Angles in a quadrilateral = 360° |

Angles around a point | Angles around a point = 360° |

Relationship between exterior angles and opposite angles of a triangle | Exterior angle = sum of opposite interior angles |

What is special about isosceles triangles | They have two sides and angles the same |

Name three types of angles on parallel lines that are equal | Vertically Opposite, Alternate Corresponsing |

Name the type of angles that = 180° on parallel lines | Interior |

What are parallelograms? | Parallelograms are quadrilaterals made from two sets of parallel lines |

In a parallelogram, opposite angles... | ...are equal |

In a parallelogram, neighboring angles... | ...add up to 180° |

What is a shape with 9 sides called? | A nonagon |

In a polygon (regular or irregular) the sum of the exterior angles =... | 360° |

In a polygon (regular or irregular) the sum of the interior angles =... | (number of sides - 2) X 180° |

In a REGULAR polygon, exterior angle =... | 360° / Number of Sides |

In a REGULAR polygon, interior angle =... | 180° - Exterior Angle |

Area of sector =... | x / 360° X Area of full Circle |

Length of arc =... | x / 360° X Circumference of full Circle |

How to find the area of a segment | 3. Area of segment = Area of sector - area of triangle |

Why are these bearings wrong: 3Â°, 55Â° 78Â°, 9Â° | Because they need to be written to three figures (eg. 003Â°, 055Â°, 078Â°, 009Â°) |

If two perpendicular lines have the gradients M1 & M2 then... | M2 will be the reciprical of M1 M1 X M2 = -1 |

Created by:
bhbryden