In triangle ABC angleA:angleB:angleC=2:3:5 then find angleC
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Answer:
C=90 degree
Step-by-step explanation:
A=2x
B=3x
C=5x
sum of all angle of the triangle is 180.
A+B+C=180
2X+3X+5X=180
5X+5X=180
10X=180
x=180/10
x=18
A=2x
=2×18
=36
B=3X
=3×18
=54
C=5X
=5×18
=90
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