khushiii64 khushiii64
  • 22-10-2017
  • Mathematics
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#3 i don’t get it pls help

3 i dont get it pls help class=

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mreijepatmat
mreijepatmat mreijepatmat
  • 22-10-2017
∠CBD + ∠DBE + ∠52° = 180° . But  ∠CBD = ∠DBE (given). then:

∠ 2DBE +52° = 180° AND ∠2DBE = 128° AND  ∠DBE =64°

In the right triangle EBD, E= 90°, ∠DBE = 64°, THEN:

∠D = 180°-(90°+64°) AND D = 26°
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