Trigonometry is the visual and application-oriented branch of mathematics. It was discovered by early astronomers to measure and navigate the world around them. Trigonometry has applications to many other sciences like physics, geography, surveying, and architecture. Rounding out your math skill and your math victory, these lessons will build upon the Algebra and Geometry series. The course lessons can be used for middle school or high school students, home schooled students and those preparing for math assessment and college entrance exams like the SAT and ACT. All lesson are interactive to make learning easier and more enjoyable. You will learn at your own pace and when it’s right for you.