Question

If the base of an isosceles triangle has length 10 cm and its perimeter is 28 cm, then the length of each congruent side is _______ cm.
(a) 38
(b) 18
(c) 9
(d) 19

Answer 1

a,b,c are the sides of isoceles triangle

a = b

perimeter = 28 cm

a + b + c = 28 cm

a + a + 10 = 28

2a = 18

a = 9 cm

b = 9 cm

Answer 2

Answer:

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