Back to forum
Desmos Graphing Calculator
Calc
Reference
Copy
Math
·
Geometry and Trigonometry
·
Right triangles and trigonometry
hard
In
△
A
B
C
,
∠
B
is a right angle and the length of
B
C
is 260 millimeters. If
cos
A
=
5
3
, what is the length, in millimeters, of
A
B
?
A
325
B
260
C
195
D
65
In \(\triangle ABC\), \(\angle B\) is a right angle and the length of… | Math SAT Question | Ronan SAT