Answer:
1. X = 23.8 cm
2. Z = 12.5 Inches
3. x = 14.03 Degrees
Step-by-step explanation:
1. Given
Hypotenuse=25 cm
Angle=18 Degrees
We will use the trigonometric ratios for right angled triangles for finding the value of X.
In the given triangle, as X is the base, we will use the ration which involves base and hypotenuse.
So,
cosθ= Base/Hypotenuse
cos18=X/25
0.9510=X/25
0.9510*25=X
X=23.775
X=23.8 cm
2.The ratio of cos will be used for this one too.
Here,
Base=10 inches
Angle=37 Degrees
cosθ= Base/Hypotenuse
cos37=10/Z
0.7986=10/Z
Z=10/0.7986
Z=12.521
Z=12.5 inches
3. As we know the values of perpendicular and base ,
So the ration which involves these both will be used.
The desired ratio is
tan x=Perpendicular/Base
tan x=5/20
tan x=0.25
x = tan^(-1)0.25
x = 14.03 Degrees ..