a triangle drawn on a map has sides of lenghts 7.0 cm, 11 cm, and 15 cm. the shortest of the corresponding real-life distances is 123km. find the longest of the real-life distatnces. round to the nearest unit.

Question

a triangle drawn on a map has sides of lenghts 7.0 cm, 11 cm, and 15 cm.  the shortest of the corresponding real-life distances is 123km.  find the longest of the real-life distatnces.  round to the nearest unit.

Ms. Sue · Answer

Cross multiply and solve for x. 7/123 = 15/x Be sure to round to the nearest whole number.

Christine · Answer

x=264km

Ms. Sue · Answer

Right.

Damon · Answer

Oh well, I still think it is principles of math.