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An exterior angle of a triangle is equal to the adjacent interior angle?
No. It is equal to the sum of the opposite interior angles.
What is the classification or triangles by side and angles?
An equilateral triangle is one where all sides are of equal length and all internal angles are 60 degrees. An isosceles triangle is one where 2 adjacent angles are of equal size and 2 adjacent sides are of equal length. A scalar triangle is one where no sides are equal in length and no angles are equal in size. A right-angled triangle is one where one of the internal angles is 90 degrees. The internal angles of all triangles always add up to 180 degrees.
What is one pair of equal angles and 2 pairs of equal adjacent sides?
One pair of equal angles can be found in an isosceles triangle, where the angles opposite the equal sides are congruent. For the equal adjacent sides, consider a rectangle, where each pair of adjacent sides (length and width) is equal to the corresponding sides on the opposite side. Thus, in a rectangle, we have two pairs of equal adjacent sides, while the opposite angles are also equal.
Is a right triangle the same as an isosceles triangle?
No. They are usually different.An isosceles triangle has two equal angles and two equal adjacent sides. An isosceles triangle with three 60° angles is the equilateral triangle.Only one isosceles triangle, which has two 45° angles, includes a right angle and is called an isosceles right triangle.
What shape has an equal adjacent angles?
A shape with equal adjacent angles is a rhombus. In a rhombus, all four sides are of equal length, and each pair of adjacent angles are equal. This means that opposite angles are also equal, resulting in a symmetrical shape. Other shapes with equal adjacent angles include rectangles and squares, where adjacent angles are 90 degrees.
Does a trapezium have adjacent angles equal?
In a trapezium (or trapezoid in American English), adjacent angles are not necessarily equal. However, in an isosceles trapezium, the angles adjacent to each leg are equal. In general, the properties of the trapezium do not require adjacent angles to be equal.
Does a rectangle have a adjacent angles equal?
Rectangles have congruent adjacent angles.
What angles do a scalene triangle have?
-- A scalene triangle has three interior angles and three exterior angles. -- The sum of the interior angles is 180 degrees, and no two of them are equal. -- The sum of the exterior angles is also 180 degrees, and no two of them are equal. -- The sum of each interior angle and its adjacent exterior angle is 180 degrees.
The angles of a triangle that are not adjacent to a given exterior angle?
Remote interior angles
What is a triangle with no equal sides and no equal angles?
A triangle with no equal sides and no equal angles is called a scalene triangle. In contrast, a triangle with equal sides and equal angles is called an equilateral triangle. A triangle with two equal sides and two equal angles is an isosceles triangle.
A triangle with all equal angles is called?
An EQUILATERAL Triangle. An ISOSCELES Triangle is two equal sides and two equal angles. A RIGHT-ANGLED Triangle has ONE right angle (90 degrees) A SCALENE Triangle has neither equal sides nor equal angles.
How many equal angles can a right triangle have?
A right triangle can have 2 equal angles if they are each 45° (any other right triangle will have no equal angles)
