Triangles

Which type of triangle is pictured?

• acute

  agudo

• Right

  recto

• Obtuse

  obtuso

• area

A triangle has angles measuring 45 degrees, 45 degrees and 90 degrees. The triangle has two congruent sides.

Un triángulo tiene ángulos que miden 45 grados, 45 grados y 90 grados. El triángulo tiene dos lados congruentes.

• obtuse

  obtuso

• acute

  agudo

• right

  recto

• small

  chico

Which would be the best classification for the triangle shown? ¿Cuál sería la mejor clasificación para el triángulo mostrado?

• obtuse

  obtuso

• right

  recto

• acute

  agudo

• large

  grande

Maria has triangle ABC. She folds side AB to side BC and they match evenly. She folds side BC to side CA and they match evenly. She folds side CA to side AB and they match evenly. Which describes Maria’s triangle?

• Isosceles

• Scalene

• Equilateral

• Right

What is the measure, in degrees, of the largest angle in a right triangle?

• 30 degrees

• 45 degrees

• 90 degrees

• 180 degrees

A triangle has angles measuring 45°, 45°, and 90° and two congruent sides. Which describes the triangle?

• Scalene acute

• Scalene right

• Equilateral acute

• Isosceles right

Answer explanation

The two equal angles means there is two equal sides, isosceles. The 90 degree angle means it's a right triangle.

Which best describes the triangle?

• Scalene right

• Equilateral acute

• Isosceles obtuse

• Isosceles right

Which triangle completes the table?

• 
• 
• 
• 

• equilateral

• isosceles

• scalene

Which type of triangle is pictured?

• Equilateral Triangle

• Right Isosceles Triangle

• Obtuse Scalene Triangle

• Obtuse Equilateral Triangle