A
C
-
B
C
= 1
5 - 4 = 1 5² - 4² = 3²
3, 4, 5 is a Pythagorean triplet
(Sin A + Cos B) =
+
3
5
4
5
=
7 / 5
A
B
C
3 cm
4 cm
5 cm
Sin A =
Perpendicular
Hypotenuse
Cos B =
Perpendicular
Hypotenuse