Q: What statements are true about a 30-60-90 degree triangle?

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No. One isn't enough. It must have two of them.

90Â° . That's true of any triangle. Doesn't have to be isosceles.

No. It is very obvious that triangle is not anywhere near a square. For one thing, it does not have four sides, and it doesn't have four 90 degree angles.

If the given numbers represent degrees then it is a right angle triangle whos 3 angles add up to 180 degrees.

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Yes, the definition of a right triangle is that it has a 90 degree angle

No. One isn't enough. It must have two of them.

90Â° . That's true of any triangle. Doesn't have to be isosceles.

no it doesn't matter what size an equalateral triangle is, it still has 60 degree angles

That it has a 90 degree angle and two equal 45 degree angles

False. That is a right (-angled) triangle. An acute triangle has all three angles less than 90o

the sides of ABC are congruent to the sides of A'B'C'

The interior angles of a triangle add up to 180. So a triangle with 3 equal sides (or angles) will have 60-degree angles. * * * * * True, but the question is about an isosceles triangle, not an equilateral triangle. The angles of an isosceles triangle are x, x and 180-2x degree where x is a measure between 0 and 90 degrees.

No. It is very obvious that triangle is not anywhere near a square. For one thing, it does not have four sides, and it doesn't have four 90 degree angles.

If the given numbers represent degrees then it is a right angle triangle whos 3 angles add up to 180 degrees.

Identities are statements that are true for any number.

What are three statements that are true about Francis Drake?