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Learn the basics of trigonometry: What are sine, cosine, and tangent? How can we use them to solve for unknown sides and angles in right triangles?

www.lshsstem.com/.../9/1/4/39145399/phy_1_trig_for_physics.pdf

The Pythagorean theorem is another formula that you will use frequently in physics. a2 + b2 = c2 Often in physics problems you are given the magnitude of a vector (the hypotenuse of a right triangle) and one of the angles in the triangle. You then need to determine the x and y components of the triangle.

physics.info/trigonometry

Trigonometry is a branch of mathematics dealing with ratios of the sides of a right triangle. Despite sounding highly specialized, it is really quite useful.

www.dummies.com/education/science/physics/trigonometry...

Physics problems sometimes require you to have some trigonometry under your belt. To see what kind of trig you need, take a look at the figure, which shows a right triangle. The long side is called the hypotenuse, and the angle between x and y is 90 degrees. Physics problems require you to be able ...

physics.info/trigonometry/summary.shtml

Summary. Trigonometry is the mathematical study of the relations of the sizes of the sides and angles of right triangles (triangles with with at least one 90° angle).; Parts of triangles The location of the sides of any triangle are identified relative to an angle using the words opposite and adjacent.; The sides of a right triangle adjacent to the right angle are called legs.

www.wired.com/story/physics-owes-a-lot-to-a-little-loved...

I'm talking about trigonometry, of course: that bastion of angles and triangles that is essential to calculating velocity, momentum, and much more. Trigonometry Is Essential to Physics. Here Are ...

www.reference.com/math/trigonometry-used-physics-4e28d...

Any field of physics that includes the use of angles or sides uses trigonometry. Some of the first fields in physics, statics and optics relied heavily on trigonometry during their pioneering stages. Trigonometry is the mathematical science that studies the relationships between lengths and angles of triangles.