Use the Pythagoras theorem:-
height = sqrt(5^2 - 3^2 ) = sqrt16 = 4 metres Answer.
Answer:
x=4
y=1
Step-by-step explanation:
4x=7y+9
4x+y=17
7y+9+y=17
8y=17-9
8y=8
y=1
so
4x=7*1+9
4x=16
x=16/4
x=4
Answer:
The answer is: 
Step-by-step explanation:
If we add the angles inside a triangle, we must have
. So we have an
angle and an
angle, their sum is
, so the missing angle must be 
The answer is 12.65 , your welcome