gamsais107 gamsais107

12-01-2021
Mathematics

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BCDE is a rectangle.
ABE is an isosceles triangle. AB = AE Angle BAE = 80° Work out the size of angle x.

BCDE is a rectangle ABE is an isosceles triangle AB AE Angle BAE 80 Work out the size of angle x class=

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kenlingdad kenlingdad

12-01-2021

Answer:

x = 220°

Step-by-step explanation:

∠AEB = ∠ABE = (180 - 80) /2 = 50 (isosceles triangle property)

∠BED = 90

x = 360 - 90 - 50 =220

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