TrianglesMenuWhat Is a Triangle?1Angle Sum of TriangleActivity Set 1Select the correct option belowCalculate angle C80°70°50°60°CheckResetContinue2Acute, Obtuse and RightActivity Set 13Equilateral, Isosceles and ScaleneActivity Set 14PerimeterActivity Set 15Formula for AreaCalculate the AreaActivity Set 16Boss Battle
