naomicervero
11.01.2021 •
Mathematics
Triangle DEF is an isosceles triangle.
DE = EF
m 2F = 13°
What is E?
A) 13
B) 64
C) 84
D) 154
Solved
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Ответ:
<E = 154°
Step-by-step explanation:
As we can see it is an isosceles triangle so
base angles are equal Then
13° + 13° + < E = 180° < Being sum of angles of triangle >
<E = 180° - 13° - 13°
Therefore <E = 154°
Ответ:
Step-by-step explanation: