math
posted by Allison .
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
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