# math

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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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