Q. 1: For the stress elements below, give the two angles (positive and negative) that define plane a-a. 1.1 1.2 a 20 a 48° a a 48° Positive and negative angles defining plane a-a: +48 / -42 +42 / -138 +42 / -48 +90 / -48 None of the above

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Q. 1: For the stress elements below, give the two angles (positive
and negative) that define plane a-a.
1.1
1.2
a
20
a
48°
a
a
48°
Transcribed Image Text:Q. 1: For the stress elements below, give the two angles (positive and negative) that define plane a-a. 1.1 1.2 a 20 a 48° a a 48°
Positive and negative angles defining plane a-a:
+48 / -42
+42 / -138
+42 / -48
+90 / -48
None of the above
Transcribed Image Text:Positive and negative angles defining plane a-a: +48 / -42 +42 / -138 +42 / -48 +90 / -48 None of the above
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