What is the internal angle sum of a quadrilateral? (Hint: A quadirlateral has 4 sides.) OA) 90 OB) 180 OC) 360 OD 540 A.) 90°
B.) 180°
C.) 360°
D.) 540°​

The internal angle sum of a quadrilateral is :

C. 360°

The sum of internal angles of a polygon is determined by a formula :

where n represents number of sides.

In a quadrilateral there are four sides,

So, plugging 4 in the formula :

_____________________________

c: lkllmn.

hope it's you

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y