In triangle ABC, AB=BC and (C's measurement is 65°.) What is the measurement of angle B.?

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beatrizndxavier beatrizndxavier

02-06-2017
Mathematics

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In triangle ABC, AB=BC and (C's measurement is 65°.) What is the measurement of angle B.?

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Lorenzo07 Lorenzo07 · Answer 1 · 2017-06-02T01:18:26+02:00

Lorenzo07 Lorenzo07

02-06-2017

"AB=BC" Meaning this is an isoceles triangle

Thus ∠C is an angle Identical to ∠A
And given the rule of thumb; "every angle on a triangle. must add up to 180°"

∠A + ∠C = 130°
180° - 130° = ∠B

∠B = 50°

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MissDanica1 MissDanica1 · Answer 2 · 2017-06-02T01:58:08+02:00

MissDanica1 MissDanica1

02-06-2017

50 degrees is the measurement of a Angle b!

Good luck!

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