In the diagram, ST is parallel to UW, In the diagram, ST is parallel to UW, o, o, o and o. Calculate the value of y A. 20 B. 25 C. 45 D. 65 Correct Answer: Option B Explanation xo + zo = 180o (sum of 45o + zo = 180o zo = 180o – 45o z = 135o z + yo + 20o = 180o (sum of 135o + yo + 20o = 180o yo + 155o = 180o yo + 180o – 155o yo = 25o `, props: [‘comment’], data() { return {} }, methods: {} }) {{ reply.posted_by.display_name }}: {{ reply.created_at }}

In the diagram, ST is parallel to UW, o, o, o and o. Calculate the value of y

x^o + z^o = 180^o (sum of

45^o + z^o = 180^o
z^o = 180^o – 45^o
z = 135^o
z + y^o + 20^o = 180^o (sum of

135^o + y^o + 20^o = 180^o
y^o + 155^o = 180^o
y^o + 180^o – 155^o
y^o = 25^o

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