Question

Which characteristics best describe an acute isosceles triangle?

I. Two sides meet at a 90° angle.
II.All side lengths are equal.
III. All angles are less than 90°.
IV. Two sides are equal in length.

Answer 1

Three and four are what best describes an acute isosceles triangle.

Answer 2

isocoleese means that 2 sides and hence 2 angles are same measure
acute means that all 3 angles are less than 90 degrees

We can rule out choice I since acut means less than 90

II is a possibility, but it doesn't best describe it

III. that is true, but it doesn't include the isocileese part

IV. that is true, but doesn't include the acute part

not sure, either III or IV