WarrenWlliams
WarrenWlliams WarrenWlliams
  • 11-09-2021
  • Mathematics
contestada

What is the measure of

What is the measure of class=

Respuesta :

mhanifa
mhanifa mhanifa
  • 12-09-2021

Answer:

  • 39°

Step-by-step explanation:

∠ABC is marked as right angle, 90°.

∠ABD and ∠CBD are complementary angles, so their sum is 90°.

  • m∠ABD = 90° - m∠CBD = 90° - 51° = 39°
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