Right Triangles Trigonometry
		B
				a side
	c side
		A = 90			C
			b side
To find angles
Unknown	Formula				Unknown	Formula
C	c / a = sine C		90 deg - B		B	b / a = sine B		90 deg - C
C	b / a = cosine C		90 deg - B		B	c / a = cosine B		90 deg - C
C	c / b = tan C		90 deg - B		B	b / c = tan B		90 deg - C
C	b / c = cotan C		90 deg - B		B	c / b = cotan B		90 deg - C
C	a / b = secant C		90 deg - B		B	a / c = secant B		90 deg - C
C	a / c = cosec C		90 deg - B		B	a / b = cosec B		90 deg - C
To find sides
Unknown	Formula
a	sqrt(b square + c square)
a	c x cosec C			c / sine C
a	c x secant B			c / cos B
a	b x cosec B			b / sine B
a	b x secant C			b / cos C
b	sqrt(a square - c square)
b	a x sine B			a / cosecant B
b	a x cos C			a / secant C
b	c x tan B			c / cotan B
b	c x cotan C			c / tan C
c	sqrt(a square - b square)
c	a x cos B			a / secant B
c	a x sine C			a / cosecant C
c	b x cotan B			b / tan B
c	b x tan C			b / cotan C