When many people picture triangles, the images of triangles with at least two sides that are equal length come into mind. However, this isn’t always the case with triangles. Scalene triangles are triangles in which all three sides are of different lengths. The three angles within scalene triangles are also of different measures. Scalene triangles …
Angles are formed when two lines intersect at a common endpoint. The intersection point is known as the vertex of the angle. An obtuse angle is formed when the number of degrees measured at or near the vertex is between 90° and 180°. In a circle, an obtuse angle would be between a quarter of …
Geometric shapes are everywhere around us. They are in buildings, our smartphones, laptops, and even our foods. In particular, congruent triangles are an important part of our lives. We’re not just talking about applying the concept to solving mathematical problems or designs on paper but physical objects that we encounter every day. In order to …
A rhombus is a quadrilateral (four-sided figure) with four equal sides. The word was adapted from the Greek word ‘rhombos,’ which means spinning. It looks like a parallelogram but with each side equal to the rest. The four angles of a rhombus do not necessarily have to be 90 degrees. This means that all squares …
An equilateral triangle has all three sides equal. To achieve this, all the interior angles are equal too. Therefore, each interior angle is 60 degrees. Like other types of triangles, it obeys the Angle Sum Property of triangle, which implies that the sum of its interior angles is equal to 1800. In some circles, an …
A quadrilateral is essentially a four-sided item. In geometry, it is considered as a closed-two dimensional polygon, made by joining four points with any three points being non-collinear. This means that a quadrilateral has four line segments, four vertices, and four angles. All the four sides of a quadrilateral may or may not be equal. …
The relationship between angles and sides of a right-angled triangle is often touted as the basis of trigonometry. But what is a right-angled triangle? Well, it is simply a triangle with one interior angle that has a value of 90 degrees (right angle). Some people also call it a 90-degree triangle. Expectedly and as per …
An acute triangle is a triangle whose all interior three angles are less than 90 degrees. In most cases, the tip of the triangle aligns with the middle of the length opposite it. Here is a good example of an acute-angled triangle. As you can see, each of the angles measures 400, 650, and 750 …