А 12
X
C
B
15
С
Use the above diagram to determine which of three following statements are true.
15 is the opposite side of the right angle and is hypotenuse of AABC
mZB = cos
1 (13)
We can use Pythagorean Theorem to find the missing leg ofAABC
mZB
tan-1 (13)

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