Flashcards
Geometric Reasoning (DHM)
Cards in this deck (24)
- 1—Angle at centre is twice the
angle at the circumference - 2—exterior angle of a cyclic
quadrilateral is equal to the interior opposite angle.
- 3—Exterior angles of a polygon
add to 360 degrees
- 4—sum of interior angles of a polygon
= (sides - 2) x 180
or
= no of triangles x 180
- 5—Pythagoras' Theorem
- 6—Alternate angles on parallel lines are equal
- 7—Isosceles triangle is formed
from radii of circle.
- 8—Co-interior angles on parallel
lines add to 180 degrees.
- 9—Corresponding angles on
parallel lines are equal
- 10Find A Find B Give the geometric reasonA = 120
B = 40
Opposite angles in a cyclic quadrilateral
add to 180 degrees
- 11Does a regular hexagon tessellate? (Fit together without any gaps)
- 12—A tangent is perpendicular (at right angles) to the radius.
- 13—angle at the centre is twice the
angle at the circumference
- 14—angles on the same arc are equal
- 15—the angle between a chord and tangent is equal to the angle in the alternate segment
- 16The red shaded area is called a ......sector
- 17The red shaded area is called a .......segment
- 18The line segment from A to B is called achord
- 19—angle at the centre is twice
the angle at the circumference
- 20I have 4 sides. I have two pairs of equal adjacent sides. My diagonals intersect at right angles. What shape am I?A Kite
- 21I have 4 sides. My opposite sides are equal in length. My diagonals bisect each other. My opposite sides are parallel. What shape am I?A Parallelogram
- 22What shape am I?An isosceles trapezium
- 23What shape am I?An equilateral triangle.
- 24—angles at a point add to 360 degrees.
Information
- Description
- Flash Cards for Level 1 AS91031 Geometric Reasoning
- Created by
- Karen Denham
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