Answer:
The measurement of the required angle = 116°
Step-by-step explanation:
Let the measure of its supplement = x
The measurement of the required angle = 2x - 12
x + 2x -12 = 180
3x - 12 = 180
3x = 180 + 12
3x = 192
x = 192/3
x = 64°
The measurement of the required angle = 2 * 64 - 12 = 128 - 12 = 116°
1/4Y -12
Straight 180
Reflex 210
Right 90
Acute 75
Obtuse 135
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x=10.5
if the two triangles were ratios it would be like
19.3:7.2 to x:3.9
so 75.27 = 7.2x
whcih is 10.45 which is approximately 10.5
