Question

Three angles of a quadrilateral are 130degrees, 80 degrees and 75 degrees. what is the size of the fourth angle

Answer 1

Answer:

75°

Step-by-step explanation:

all angle of quadrilateral=360°

130°+80°+75°+x=360°

285°+x=360

x=85°

Answer 2

Answer: 75 degrees

Step-by-step explanation:

130+80+75= 285 degrees

360-285= 75 degrees