Question

7. In Fig. 6.41. BA II DE and BC II EF. Prove
that angleABC + angleDEF = 180°.
Fig. 6.41 is ☝️☝️☝️​

Answer 1

Step-by-step explanation:

given BA || DE

and BC || EF

by problem,

= angle ABC+angle DEF

= 90 degrees+90 degrees

= 180 degrees

hence proved

angle ABC+angleDEF=180

hope it helps

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