LibGuides: Grade 9: Math: Measurement and Geometry

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Learning More

Pythagoras' Thoerem
Over 2000 years ago there was an amazing discovery about triangles:
When the triangle has a right angle (90°) ...
... and squares are made on each of the three sides, then ...
... the biggest square has the exact same area as the other two squares put together!

It is called "Pythagoras' Theorem" and can be written in one short equation:
a2 + b2 = c2

Top Picks

Definition of Geometry: Geometry is the branch of mathematics concerned with the shape of individual objects, spatial relationships among various objects, and the properties of surrounding space.

Britannica Article - Learn about the History & Branches of Geometry
FIND THE BRITANNICA LOGIN ON THE BACK OF YOUR VLC BOOKMARK.
wikiHow
How to find the measurement of the diagonal inside a rectangle.
more...less...
Related widiHows - How to: Find a square's area using the diagonal; find how many diagonals are in a polygon; calculate a diagonal of a square; write congruent triangles (geometry proof); solve Pythagoras Theorem questions; prove the Pythagorean Theorem; use the Pythagorean Theorem.
Grade 9 Geometry and Measurement Questions
Create printable tests and worksheets from Grade 9 Geometry and Measurement questions.
Grade 9 Measurement and Geometry - Videos
Math solutions for students.
IXL Geometry
Here is a list of all of the skills students learn in grade 9!
Grade 9 Math Exam Review Quiz
If you can pass (get over 80%) all 9 of these quizzes, then you should have no problem passing the Gade 9 Math Exam.
9th Grade Math Help
The students get help with the various topics under various branches on mathematics. Ninth grade students also get support to solve their homework problems and prepare for their exams with Math help.