Course · Grades 9 to 10
Geometry
Triangles, circles, area and volume.
- Topics
- 3
- Worked examples
- 15
- Practice problems
- 10
Topics
-
Angles and triangles
Angle sums and the sides of a right triangle.
Grades 9 to 10
-
Circles and area
Find the area of a circle from its radius.
Grades 9 to 10
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Volume and surface area
Measure the space inside and the surface of a prism.
Grades 9 to 10
Worked examples
- How to Find a Missing Angle in a Triangle Angles and triangles
- How to Use the Pythagorean Theorem Angles and triangles
- How to Find the Area of a Circle Circles and area
- How to Find the Volume of a Rectangular Prism Volume and surface area
- Find the Surface Area of a Rectangular Prism Volume and surface area
- How to Find the Circumference of a Circle Circles and area
- How to Find the Area of a Circle from the Diameter Circles and area
- How to Find the Radius from the Circumference Circles and area
- How to Find the Angles of an Isosceles Triangle Angles and triangles
- How to Find the Volume and Surface Area of a Cube Volume and surface area
- How to Find the Area of a Semicircle Circles and area
- How to Find the Complement of an Angle Angles and triangles
- How to Find the Volume of a Cylinder Volume and surface area
- Find the Missing Height of a Rectangular Prism Volume and surface area
- How to Use the Pythagorean Theorem to Find a Leg Angles and triangles
Need the rules first? The Geometry formula sheet lists the key formulas and links back to these examples.
Ready to practice?
10 Geometry problems with answers, grouped by topic.