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| Math Central | Quandaries & Queries |
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Question from Devon, a student: The length of one of the equal legs of an isosceles triangle is 8 cm less than 4 times the length of the base. If the perimeter is 29 cm, find the length of one of the equal legs. |
Hi Devon.
Four times the length of the base less 8 cm is 4b - 8. So the legs are b, 4b-8 and 4b-8. Add them up and you get the perimeter of 29 cm.
Can you solve for b now?
Stephen La Rocque.>
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