No. One isn't enough. It must have two of them.
90° . 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.
true
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.
90° . That's true of any triangle. Doesn't have to be isosceles.
That it has a 90 degree angle and two equal 45 degree angles
no it doesn't matter what size an equalateral triangle is, it still has 60 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.
Identities are statements that are true for any number.
If the given numbers represent degrees then it is a right angle triangle whos 3 angles add up to 180 degrees.
What are three statements that are true about Francis Drake?