Triangle circumference calculation

The triangle has a perimeter of 19.5 cm. From the formula for calculating its circumference, express successively unknown a, b, c. Then over by substituting: a = 8 cm; b = 6.5 cm; c = 5 cm. (always count the expressed side)

Final Answer:

a =  8 cm

Step-by-step explanation:

o=19.5 o=a+b+c b=6.5 cm c=5 cm b = oac c = oab  a=obc=19.56.55=8 cm

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