Angle

Determine the size of the smallest internal angle of a right triangle whose angles form consecutive terms of an arithmetic sequence.

Final Answer:

a =  30 °

Step-by-step explanation:

c=90  a<b<c  a+b+c=180   a+b=90    ba = cb  b(90b)=cb b(90b)=90b  3b=180  b=3180=60  b=60  a=90b=9060=30



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You need to know the following knowledge to solve this word math problem:

algebraplanimetryUnits of physical quantitiesGrade of the word problem

 
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