How Do Secant-Tangent and Tangent-Tangent Angles Work? A Complete Guide
Secant-Tangent Angle: Formed when a secant line and a tangent line intersect at a point outside the circle. The angle’s measure is half the difference between the measures of the intercepted arcs. Tangent-Tangent Angle: Formed when two tangent lines intersect outside a circle. This angle’s measure is half the intercepted arc between the two points […]
How to Define Sine, Cosine, and Tangent
TL;DR: Sine, cosine, and tangent are the three ratios that unlock every right triangle. For any acute angle theta inside a right triangle, sine is the opposite side over the hypotenuse, cosine is the adjacent side over the hypotenuse, and tangent is the opposite side over the adjacent side. The mnemonic SOH-CAH-TOA packs all three […]
