Question

please help me by tomorrow

Answer 1

Answer:

y=18

Step-by-step explanation:

5y+3y+2y=180

10y=180

y=180/10

y=18

therefore

Answer 2

From the figure we know that ∠AOB is a straight line

So we get

∠AOB=180°

It can also be written as

∠AOD+∠COD+∠BOC=180°

By substituting the values

5y+3y+2y =180°

10y =180°

y =180°/10

y = 18°

By substituting the value of y we get

∠AOC= ∠AOD +∠COD

= 5y° + 3y°

5×18° + 3×18°

90° + 54°

144°

∠BOD= ∠BOC + ∠COD

2y° + 3y°

2×18° + 3×18°

36° + 54°

90°

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