ABC is an isosceles triangle. AB = BC, AB = BC = 3AC. the ABC perimeter is 70cm. Find AB, BC, AC
| December 5, 2020 | education
since ABC is an isosceles triangle and AB = BC, then AB = BC = 3x, then AC = x
P = x + 3x + 3x
70 = 7x
x = 10
Therefore, AB = BC = 30 cm, AC = 10 cm.
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