Answer:
18,36,54,72
Step-by-step explanation:
We know a straight angle measures 180°
therefore,
x+2x+3x+4x=180°
x+9x=180° [ADDING THE VALUES]
10x=180°[ADDING THE VALUES]
[tex]x = \frac{180}{10} [/tex]
[tex]x = 18[/tex]
: . 2x= 2×18
= 36
: . 3x= 3×18
=54
: . 4x=4×18
=72
Therefore,
we can say that —
18°+36°+54°+72°=180°(Hence verified)