Step-by-step explanation:
180°+63°
=243°
holp it help
Simlplify the expression. 2.3h(6-k)
1 answer:
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Focus on triangles DFC and DFE:
- They are both right triangles because DF is perpendicular to EC
- DC=DE
- DF is a common side
So, the two triangles are congruent. It follows that CF=FE, and in particular
And since x=3, the length of EF is