023 Triangle Properties Quiz

What do all three interior angles in a triangle add up to?

• 90

• 180

• 360

• 270

Which of the following best describes the Isosceles Triangle Theorem?

• If two sides in a triangle are congruent, then the sides opposite of the angles are congruent.

• If two sides in a triangle are congruent, then the angles next to the sides are also congruent.

• If two sides in a triangle are congruent, then the angles opposite of the sides are also congruent.

• None of the above

How can you show a triangle is isosceles without showing two congruent sides?

• Take a ruler and measure the side lengths

• Eyeball and guess it

• Showing two angles are congruent.

• None of the above.

What does equilateral mean here?

• An isosceles triangle with three equal sides

• An isosceles triangle with three equal angles

• Equal sides

• Equal angles

What does equiangular mean?

• Equal sides in a scalene triangle

• Equal angles

• Equal sides

• Isosceles angles have at least two equal angles.

If a triangle is equiangular, then what is the only angle measurements that works for all three angles?

• 30 60 90

• 180

• 45 45 90

• 60 60 60

Which best describes the triangle inequality theorem?

• Two sides added together are less than the third side

• Two sides added together are greater than the third side

• Two sides added together equals the third side

• Two sides added together are greater than or equal to the third side.

How do I figure out the biggest side length of a triangle if I don't have a ruler?

• Look at the smallest angle opposite to the long side

• Look for all equal angles opposite to the short side

• Look for the largest angle opposite of the long side

• Look for the largest angle opposite of the shortside