mikaelajr02 mikaelajr02
  • 20-09-2022
  • Mathematics
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(b) Hasil tambah bagi tiga sudut pedalaman sebuah pentagon ialah 290°. Diberi dua sudut yang lain ialah xº dan yº°. Cari nilai x + y. The sum of three interior angles of a pentagon is 290°. Given that the other two angles are x° and y°. Find the value of x + y. ​

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