The diagonals are equal and split a rectangle into four isosceles triangles. The diagonals ... 90°, then the smaller top left corner angle is 90° - 70° = 20°. Using the rectangle's lines ...

It categorizes triangles into equilateral, isosceles, scalene, obtuse, right, and acute based on their sides and angles ... 67, and 70 Should daylight saving time be canceled?

divide the sum of interior angles in a triangle by 3 In an isosceles triangle, two of the sides are equal. This means two of the angles are equal. These are the base angles. The base angles are ...