17. In ∆ABC, AB = AC, BD = EC. Then, ∆ADE is
(a)right angled
(C) isosceles
(b) scalene
(d)equilateral.
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Answered by
2
Answer:
c) isosceles triangle
Step-by-step explanation:
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0
Answer:
isosceles
Step-by-step explanation:
BD = EC
so DE = constant
therefore
BD + EC = DE
also
AB= AC
so
angle A is constant coz angle BAD= angle CAE
Therefore AD = AE. coz angle A is constant
so Frome above
AD = AE ≠ DE hence triangle is issoceles
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