marcedeswilliaox7rok marcedeswilliaox7rok
  • 15-03-2018
  • Mathematics
contestada

A triangle has an angle that measures 90°. The other two angles are in a ratio of 2:7. What are the measures of those two angles?

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haddiemd
haddiemd haddiemd
  • 23-03-2018
First, subtract 90° from 180°, since 180° is the sum of all the angles in a triangle.

180 - 90 = 90
°.

Now, we can really just test out different sets of numbers in a 2:7 ratio until we find two that have a sum of 90
°.

If you look closely, 2 + 7 is 9. So, using that logic, multiplying 2:7 by 10 would get you 20
° and 70°, which have a sum of 90°.

So the measures of the missing 2 angles is 20
° and 70°.
Hope I helped!
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