use the SohCahToa method
sohcahtoa SOH|CAH|TOA S= O opposite over hypotenuse _ H C=A adjacent over hypotenuse _ H T=O opposite over adjacent _ A
Use SOHCAHTOA, then cross multiply and divide.
A way to remember the definitions of the three most common trigonometry functions: sin, cos and tan. Used as a memory aid for the definitions of the three common trigonometry functions sine, cosine and tangent.
Sin= Opposite/Hypotenuse Cos= Adjacent/Hypotenuse Tan= Opposite/Adjacent
SOHCAHTOA - Sine=Opposite/Hypotenuse, Cosine=Adjacent/Hypotenuse, Tangent=Opposite/Adjacent One way to remember that is to imagine it is an Indian name (like Pocahantas, only Sohcahtoa). Another way is to think of how it sounds ... SOH CAH TO A ... sort of like Soak A Towel. Another way is to make a long Silly Sentence with each letter, such as Sometimes One Hog Causes Another Hog To Oink Away
The longest length would be the hypotenuse. You can use SOHCAHTOA to find the length.
D= vyt+1/2at2 a = (v2-v1)/t These are the two most basic formula that are used to figure out projectile motion questions, combine with SOHCAHTOA (trig) to solve simple projectile motion problems. Remember the horizontal velocity is always constant.
Sohcahtoa is an abbreviation (SOH) sine opposite hypotenuse (CAH) cosine adjacent hypotenuse (TOA) tangent opposite adjacent.
Just remember SOHCAHTOA, SOH is using the sine, only use this when you have the Hypotenuse and the Opposite. Sin(a)= O/H CAH is using the cosine, only use this when you have the Hypotenuse and Adjasent. Cos(a)=A/H TOA is using the tangent, only use this when you have the Opposite and Adjasent. Tan(a)=O/A
It means for any right angle triangle:- sine = opposte/hypotenuse cosine = adjacent/hypotenuse tangent = opposite/adjacent