![]() ![]() ![]() Types Types of Triangles Isosceles, Equilateral, Scalene, Obtuse. Example 3: If all the angles of a triangle are less than 90, what type of triangle is it called? Triangles can be classified by angles, as: The types of triangles based on the length of the sides are, To classify triangles according to both angles and sides, we measure the interior angles and length of the sides of the triangle. Observe the following figure which shows the types of triangles that are distinguished on the basis of their sides and angles. QR is the triangles base, and PS is the triangles height. If two triangles have two congruent angles, then the triangles are similar. csc x = 1/sin x = hypotenuse/opposite b) For angle y: AB is the hypotenuse, BC is the adjacent side, and AC is the opposite side. The hypotenuse of a right triangle is always the side opposite the right angle. Hence, using the properties of the triangle we can say that Tim will not be able to construct a triangle with sides 5 cm, 4 cm, and 9 cm. For example, if the 3 interior angles of a triangle are given as a, b, and c, then this property can be expressed as, a + b + c = 180. What is the name for a triangle in which none of the sides or angles are equal? Since there are three sides and two non-right angles in a right triangle, the side PQ, which is opposite to the right angle PRQ is called the. In the triangle PQR, PQ, QR, and RP are the sides. So, the perimeter of the triangle = Sum of all three sides. ), It has no equal sides so it is a scalene right-angled triangle. So, the Area of a triangle = (Product of base and height of a triangle). Example 2: The length of the two sides of a triangle is equal. ![]()
0 Comments
Leave a Reply. |