Step-by-step explanation:
Angle A = 4x + 12 = 4(15) + 12 = 72°.
Acute is for angles that are less than 90°.
Obtuse is for angles that are between 90° and 180°, not inclusive.
Right is for angles that are 90°
Hence the answer is acute.
Answer:
120 degrees
Step-by-step explanation:
180 - 60 = 120
Answer:
Step-by-step explanation:
take 51 degree as reference angle
using sin rule
sin 51=opposite/hypotenuse
0.77=YZ/9
9*0.77=YZ
6.93=YZ
6.9=YZ
Answer: 2+ x/9
graphed
x y
0 2
9 3
Step-by-step explanation: