Find the approximate side length of a square game board with an area of 155in2.

The side of a square is the square root of the area.

Side = sqrt(155)

Side = 12.45 inches. (Round answer as needed)

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation:

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58