7. Applying the concept of exterior angle theorem, which of the following statement is TRUE? A. \(\angle b + \angle c = \angle d\) B. \(\angle a + \angle c = \angle b\) C. \(\angle b + \angle d = \angle c\) D. \(\angle a + \angle c = \angle d\) 8. If \(m\angle b = 40^\circ\), and \(m\angle c = 60^\circ\), what could be the \(m\angle d\)? A. \(40^\circ\) B. \(100^\circ\) C. \(10^\circ\) D. \(50^\circ\)
Added by David W.
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Looking at the answer choices: A. Zb + Zc = Ld B. Za + Lc = Zb C. Zb + Zd = Lc D. Za + Zc = Ld We can see that option C is the correct statement according to the exterior angle theorem. Show more…
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