An isosceles triangle has a perimeter of 30 cm. If the base is 7.8 cm long, find the length of the equal sides.
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An isosceles triangle has a perimeter of 30 cm. If the base is 7.8 cm long, find the length of the equal sides.
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Answer:
Length of one side is 11.1 cm
Verified answer
Perimeter =A+B+C
30=7.8+x+x
30-7.8=2x
22.2/2=X
X=11.1cm
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