obtuse triangle
Has wide corner
An obtuse triangle is a triangle containing one angle greater than 90 degrees.
Since a triangle's angles must sum to 180 degrees, only one angle can be obtuse—the other two must be acute.
The sail formed an obtuse triangle against the sky.
- orthocenterTriangle altitude concurrence point
- shapeExternal outline of something
- altitudesVertical distances upward
- protractorAngle-measuring instrument
- circumcircleCircle through all vertices
degree measure · Euler line · geometry · hypotenuse · trigon · trilateral · interior · mathematics · centroid · vertex · Euclidean geometry · math homework · base · wide angle · supplementary angles · education · area · perimeter
- Trianglesequilateral, isosceles, scalene, hypotenuse, vertex
- polygonspolygon, quadrilateral, pentagon, hexagon, heptagon
- shapescircle, square, rectangle, oval, hexagon
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