Triangles Flashcards
1
Q
Area of right angle triangle
A
1/2bh
2
Q
Area of triangle 1
A
1/2ab sinC
3
Q
Area of triangle 2
A
________________
/s(s-a)(s-b)(s-c)
s=a+b+c/2
4
Q
Pythagoras Theorem
A
a^2+b^2=c^2
5
Q
Trigonometric Ratios- Sine
A
Sin°=opposite/hypotenuse
a/SinA=b/SinB=c/SinC
6
Q
Cosine
A
Cos°=adjacent/hypotenuse
a^2=b^2+c^2-2bc CosA
7
Q
Tangent
A
Tan°=opposite/adjacent
Sin°/Cos°=Tan°
8
Q
Angle of Elevation and Depression
A
°= tan-1(opposite/adjacent)
9
Q
Bearings
A
3 figure angle found using Sin° and Cos°
