Question

seven angles of a octagon are 130°find the eight angle​

Answer 1

$\huge{\mathfrak{\pink{☆Answer☆}}}$

We know that the sum of all interior angles of a polygon is given by ;

$\boxed{(n-2)180°}$

Since an octagon has 8 sides :

Thus the sum of all int. angle of the octagon =

• (n-2)180°
• (8-2)180°
• 6×180°
• = 1080°

Given ;

7angles of the octagon = 132° each

Let 8th angle = θ =?

Therefore by using angle sum property of a octagon we can say that;

• 7(132°) + θ = 1080°
• 924° + θ = 1080°
• θ = 1080° - 924°
• θ = 156°

Answer 2

Answer:

70°

Step-by-step explanation:

ugliest

isn't

idols make me as brilliant please