3 years ago

Help please, only look at the graphic

Mathematics

2 answers:

Blizzard [7]3 years ago

7 0

All I know is that it is acute and less than 51 degrees

Marrrta [24]3 years ago

7 0

Answer:

AOB is 39 degrees.

Step-by-step explanation:

Given that ∠DOE is 51 degrees we know that ∠AOE is 180 degrees as it is a straight line.

∠BOD is a right angle given the ∟symbol so therefore ∠BOD is equal to 90 degrees.

m∠DOE + m∠BOD = 141 degrees <em>(because 51 + 90)</em>

Therefore m∠AOB = 39 because 180 - 141 = 39

Straight angles are equal to 180! Hope this helped

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