TrianglesMenuWhat Is a Triangle?1Angle Sum of TriangleActivity Set 12Acute, Obtuse and RightWhat Are Acute, Obtuse and Right Triangles?This video depicts that acute triangles have 3 angles smaller than 90°, obtuse ones have 1 angle greater than 90°, and right ones have 1 angle of exactly 90°.DoneContinueActivity Set 13Equilateral, Isosceles and ScaleneActivity Set 14PerimeterActivity Set 15Formula for AreaCalculate the AreaActivity Set 16Boss Battle
What Are Acute, Obtuse and Right Triangles?This video depicts that acute triangles have 3 angles smaller than 90°, obtuse ones have 1 angle greater than 90°, and right ones have 1 angle of exactly 90°.DoneContinue
