Answer:
8°,32°,140°.
Step-by-step explanation:
Sum of measure of angles of a triangle is 180°
Let the second smallest angle be x°
Smallest angle=[tex]\frac{1}{4}[/tex] x
Largest angle= 5 x- 20°
A T Q
x+ [tex]\frac{1}{4}[/tex] x + 5x-20= 180°
[tex]\frac{4x+x+20x}{4}[/tex] = 180+ 20
[tex]\frac{25x}{4}[/tex] = 200
x= [tex]\frac{200}{25}[/tex] × 4
x= 32°'
Smallest angle is 32°
Hence, the smallest angle is [tex]\frac{1}{4}[/tex] x= [tex]\frac{1}{4}[/tex]×32°= 8°
Largest angle is 5x- 20= 5×32- 20= 140°