Geometry 8.2c, Calculating Trig Ratios with a Trig Table

We use a trig table (trigonometric table) to find a missing length of a right triangle. We solve a problem from the previous video (when we used a calculator) about a wheelchair ramp by using a trig table. We use the mnemonic soh-cah-toa to help us decide which legs to use. We round a decimal to the closest degree on the trig table. We also find sinA to the closest degree, find the difference between the two options, then decide which one to use. How finding the sine will help us find the cosine.

Geometry 8.2a, Trigonometric Ratios, introducing Sine, Cosine, Tangent

Geometry 8.2b, Finding & Calculating Trigonometric Ratios

High School Geometry Playlist

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[nicolasfalcone]

muy buen video me encanto felisitaciones☺