the three angles of a triangle are in a 1:2:3 ratio. What are their measurements?
Let the angles be , , and
is to the sum as is to the sum
But since °
Cross-multiply:
Divide both sides by 6
°
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is to the sum as is to the sum
But since °
Cross-multiply:
Divide both sides by 6
°
-----------
To find the third angle you could just add those
two and subtract from 180°, but as a check you
could do it like the others:
is to the sum as is to the sum
But since °
Cross-multiply:
Divide both sides by 6
°
Edwin