Since the triangle is equilateral, all its angles are equal to 60°
AO is the bisector⇒∠OAD = 30°
AO is the hypotenuse, ∠OAD = 30°⇒
OD=5*2=10m
By the Pythagorean theorem
Answer: A) m²
P.S. Hello from Russia and sorry for my bad english :^)
Is the following shape a rectangle? How do you know?
1 answer:
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