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Which equation could be used to find the perimeter of an isosceles triangle, with two sides 13 cm long, a base 10 cm long and a height of 12 cm?



A.


P = (10 × 12) ÷ 2


B.


P = 2 × 13 + 10


C.


P = 13 + 10 + 12


D.


P = 2 × 10 + 13

  • math -

    The perimeter is the sum of the three sides.

    P = 2 × 13 + 10

  • math -

    What value of f makes the equation true?



    f – 18.4 = 11.8

  • math -

    6.6 because you have no number for F so you are supposed to do 11.8-18.4 and that equals 6.6 and 18.4-6.6=11.8

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