To find the value of X you would have to solve the equation.
Example: for question 2
Answer:
Step-by-step explanation:
Answer:
Hi,
Step-by-step explanation:
PR²=PQ²+QR²-2*PQ*QR*cos(51°)
=15²+12²-2*15*12*cos(51°)
=142,444659....
PR=11.9350...
PQ²=QR²+PR²-2*QR*PR*cos(R)
cos(R)=(12²+142.444...-15²)/(2*12*11.9350...)=0,21451112....
angle R=77,61315...°≈77.6°
angle P=180°-51°-77.6°≈51,4°
34 and -14 as proven here:
Sum: 34 + -14 = 20
Difference: 34 - -14 = 48
just the opposite (when it says negative it gonna be positive)
