Jawabanmu

2014-05-10T16:00:36+07:00
2014-05-10T16:12:38+07:00
= y + y
= 38 + 38
= 2 (76)

= x + x
= 52 + 52
= 2 (104)
<BOD= <aoc + <aec =  2 (76) + 2(104) = 2(76 +104) = 2 (180) = 180/2 = 90 derajat

makasih ya
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