lukefrankfort lukefrankfort

23-03-2017
Mathematics

contestada

A triangle has two sides that measure 2.5 cm and 16.5 cm. Which could be the measure of the third side? A. 5.5 cm B. 12.5 cm C. 14 cm D. 17 cm

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anon358 anon358

23-03-2017

(2.5)^2 + (16.5)^2 = c^2
c = sqrt(2.5^2 + 16.5^2)
c = sqrt(278.5)
c = 16.69
Rounded up it would be 17, so the answer is D.

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