User manual

30
r
Š³ Problem
Find angle A of the right triangle below. Then calculate
angle B and the length of the hypotenuse c . Lengths
are in meters. Round results to one decimal place.
Reminder:
tan A =
7
3
therfore m ±A =
tan
-1
( )
7
3
m ±A + m ±B + 90° = 180°
therefore m ±B = 90° -
m ±A
c =
q < $ $ " " <
- Z Z 7 P 3 ) <
90 U % i <
30XPlusMV_OM.flpgl Page 30 Friday, November 14, 2014 1:57 PM