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In a DeltaABC, if A=18^(@), b-a=2, ab=4,...

In a `DeltaABC`, if `A=18^(@)`, `b-a=2`, `ab=4`, then the triangle is

A

right-angled

B

isosceles

C

acute-angled

D

obtuse-angled

Text Solution

Verified by Experts

The correct Answer is:
D
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