Answer:
20 inches
Step-by-step explanation:
5 inches for each of the four sides.5×4=20
Answer:
Neither
Step-by-step explanation:
142 + 56 = 198º
Complimentary = 90º
Supplementary = 180º
Neither
You would use the law of cosines
Cpctc because corresponding parts of congruent triangles are congruent. <span />