Question

the longest side of an acute isosceles triangle 8 centimeters . Round to the nearest tenth, what is the smallest possible length of one of two congruent sides?

Answer 1

Let x be the length of each of two congruent sides.

The triangle will be аcute if:     
x² + x² > 8²
2x² > 64
x² > 32
x > √32
x > 5.657

So, the smallest possible length of one of two congruent sides have to be 5.7 cm  (to the nearest tenth)

Answer 2

Answer:

The answer is D: (5.7cm)

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