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DanielleElmas [232]
3 years ago
10

Find the values of the pronumerals in this diagram. Write down the reason in each case.

Mathematics
1 answer:
timofeeve [1]3 years ago
5 0

Answer:

see explanation

Step-by-step explanation:

a and 85 form a straight angle and are supplementary, thus

a + 85 = 180 ( subtract 85 from both sides )

a = 95

b and 85 are vertical angles and are congruent, thus

b = 85

c and 85 are corresponding angles and congruent, thus

c = 85

c and d are vertical angles and congruent, thus

d = 85

In conclusion

a = 95, b = 85, c = 85, d = 85

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