Find the measure of angle x. a) 90° b) 45° c) 135° d) 180°

The angles of a triangle always equal 180.

You do 180 - 80 - 45. X = 45.

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's