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06-02-2020
Mathematics

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Examine the diagram below and find the value of angle a and angle b

Examine the diagram below and find the value of angle a and angle b class=

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Larrysammz Larrysammz

07-02-2020

Answer:

50°, 105°

Step-by-step explanation:

a + 130 = 180 ( sum of angles on a straight line)

a = 180 - 130 = 50°

a + b + 45 = 180 ( sum of angles in a Δ)

30 + b + 45 = 180

75 + b = 180

b = 180 - 75 = 105°

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