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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
- Geology (GG)
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Sajan sarthak Best Answer
Ans is coming as 130 °
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Rahul kumar
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Answer: 130° Given, exterior angle between (001) and (021) = 40° So, the Interior angle between (001) and (021) = 180-40= 140 Now, Sum of interior angles of a Pentagon= 540° i.e., 90+90+90+140+(angle between between (010) and (021))= 540 i.e., 410 + angle between (010) and (021) = 540 i.e., angle between (010) and (021)= 130°
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Sushmita
Answer:140° , given exterior angle between (001) and (021) = 40°, and so, interior angle between (001) and (021) = 180°-40°= 140°...then using law of interfacial angle then... interior angle between (001)and (021) is same as angle between(021)and (010).... hence... interior angle between (010)and (021) is 140°.