# Basic Geometry

## Complementary Angle Subtraction

### Subtraction practice for finding complementary angles (Angles whose sum is 90 degrees).

 Common Complementary Angles Five Degree Complementary Angles Arbitrary Complementary Angles

## Supplementary Angle Subtraction

### Subtraction practice for finding supplementary angles (Angles whose sum is 180 degrees).

 Common Supplementary Angles Five Degree Supplementary Angles Arbitrary Supplementary Angles

## Parallel, Perpendicular, Intersecting

### Labelling lines as parallel, perpendicular or intersecting. Includes line shapes that imply intersection.

 Simple Parallel, Perpendicularand Intersecting Lines Parallel, Perpendicularand Intersecting Lines Joined/Unjoined Lines More Joined/Unjoined Lines Unjoined Lines Only

## Angles, Right, Obtuse, Acute

### Label angles as right, obtuse or acute. Optionally estimate or use a protractor to measure the actual angles.

 Simple Right, Acute or Obtuse Angles Rotated Simple Right, Acute or Obtuse Angles Right, Acute or Obtuse Angles Rotated Right, Acute or Obtuse Angles Angles Near Perpendicular Rotated Angles Near Perpendicular

## Basic Shapes

### Identify and name basic quadrilaterals, triangles and polygons.

 Name the Shapes Name the Rotated Shapes Name the Quadrilaterals Name the Rotated Quadrilaterals Name the Triangles Name the Rotated Triangles

## Area and Perimeter of Rectangles

### Calculate the area and perimeter of rectangles given their dimensions; Also works for multiplication practice!

 Area and Perimeter of Rectangles Set 1 Area and Perimeter of Rectangles Set 3 Area and Perimeter of Rectangles Set 3

## Circles - Diameter and Radius

### Worksheets to calculate radius from diameter, diameter from radius, or radius and diameter from area or circumference.

 Diameter from Radius, Radius From Diameter Diameter or Radius from Circumference Diameter or Radius from Area Diameter or Radius from Cirumference or Area

## Circles - Area and Circumference

### Worksheets to calculate circle area and circumference.

 Area, Circumference from Radius, Diameter Area, Circumference from Radius, Circumference Area, Circumference from Radius, Area Area, Circumference from Circumference, Area

## Circles - Relationhips

### Calculate the radius, diameter, area and circumference given one circle fact.

 Calculate Circle Radius, Diameter, Circumference, Area 1 Calculate Circle Radius, Diameter, Circumference, Area 2