triangle

A flat shape with three straight sides and three corners.

• Draw a triangle on the paper.
• This triangle has three equal sides.
• Can you find the area of these triangles?

Common phrases: draw a triangle, right triangle, equilateral triangle

A musical instrument made from a metal bar with three sides, struck with a small metal stick.

• She plays the triangle in our band.
• He struck the triangle with a metal stick.
• The triangles rang out above the drums.

Common phrases: play the triangle, strike the triangle, triangle player