Answer:
10 cm
Step-by-step explanation:
The larger polygon is also a regular 6-sided polygon, so each side is 1/6 of the perimeter length:
(60 cm)/6 = 10 cm . . . length of a side
x^2 + 14x + 49 = 0
the answer is 112
901-789=112
answer for 9 is 6cm not sure about 10
