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How do you solve a triangle with only 2 sides known and related angles?
WyattJamesonfb2218
In a triangle with angles A, B,C and sides a, b, c with side a opposite angle A, side b opposite angle B, and side c opposite angle C:
If you know 2 of the angles (b and c), the third (a) can be calculated as the sum of the angles must be 180°: a = 180° - (b + c)
If you know 2 of the sides (b and c) and the angle between them (A), the third side (a) opposite the angle A can be calculated using the cosine rule:
a^2 = b^2 + c^2 - 2 b c cos A
If you know one side (a) and the angle opposite it (A), then if a side (b) is known, the angle opposite it (B) can be calculated, or if an angle (C) is known the side (c) opposite it can be calculated, using the sine rule:
(sin A)/a = (sin B)/b = (sin C)/c = 1/(2R)
where R is the radius of the circumcircle of the triangle.
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∙ 9y ago
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How many sides and angles does a scalene triangle have?
Sides and Angles in a TriangleBy definition, a triangle has three sides. Since the number of sides and angles is equal, it would also have three angles.
All angles are right angles or a triangle has four sides?
False - and false ! Not ALL angles are right-angles - and a triangle has THREE sides !
A polygon with three sides and three angles?
It's probably a triangle. A triangle has three sides and three angles.
What is the name of a triangle with no equal sides or angles?
The scalene triangle has no equal sides, and, therefore, no equal angles. (A triangle with no equal sides cannot have any equal angles and vice versa.)
Is the isosceles triangle the only triangle with congruent sides and angles?
In an isosceles triangle 2 sides are congruent and 2 angles are congruent. In an equilateral triangle all 3 sides are congruent and all 3 angles are congruent also.
Which triangle is it called when it has no equals sides or angles?
It is known as a Scalene Triangle. The triangle with no congruent sides.
A type of triangle with no congruent sides or angles?
A triangle with no equal sides or angles is known as a scalene triangle. Equilateral triangles, by contrast, have three equal sides and three 60 degree angles.
Triangle with no equal sides angles or sides?
A triangle with no equal sides or angles will always be classified as 'scalene'.
Is trigonometry a study of measurements?
No it is the study of how the sides and angles of a triangle are related to each other
How many sides and angles does a scalene triangle have?
Sides and Angles in a TriangleBy definition, a triangle has three sides. Since the number of sides and angles is equal, it would also have three angles.
All angles are right angles or a triangle has four sides?
False - and false ! Not ALL angles are right-angles - and a triangle has THREE sides !
How are sides in a triangle related?
The sum of the lengths of any two sides of a triangle must be greater than the third. After that, any relationship is specific to the triangle: its angles or other characteristics.
How man angles does a triangle have?
A triangle has 3 angles and 3 sides, which is why it is called a TRIangle.
Does a triangle have 3 sides and 3 angles?
Yes a triangle consists of three sides and three angles.
Why does a triangles have three sides and three angles?
That is the definition of a triangle. If it did not have three sides it would not be a triangle. If it did not have three angles, it would not be a triangle.
How many sides and angles does triangle have?
3 sides and 3 angles
What triangle has no angles or sides?
No triangle. A triangle must have 3 angles that add up to 180 degrees, and three and only three sides, with no sides parallel.
