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alyssaboosiefkes
12.02.2021 •
Mathematics
Which of the following is the surface area of the right cylinder below?
A. 1447 units2
B. 7271 units2
C. 1927 units2
D. 1767 units2
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Ответ:
D
Step-by-step explanation:
176 pi units squared
Ответ:
See below.
Step-by-step explanation:
Triangle ABC is congruent to triangle DEF (Given)
Angle ACB is congruent to angle ECG. (Vertical angles theorem)
Angle CEG is congruent to angle DEF. (Vertical angles theorem)
Angle DEF is congruent to angle ABC. (Definition of congruent triangles)
Angle CEG is congruent to angle ABC. (Substitution property of equality).
Triangle ABC is similar to triangle GEC. (Angle angle similarity postulate- if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.)