![]() It can be filled with 3 rows and 4 columns of unit squares and therefore the area is 3 times 4 or 12 square centimeters. This area can be found by dividing the shape into unit squares and determining the number of unit squares in the shape as each unit square occupies one square unit space.Ĭonsider a rectangle with length of 4 cm and width of 3 cm. The area of a two-dimensional shape is the space occupied by the shape. Thus, we can see that the perimeter of an equilateral triangle is 3 times the length of each side. ![]() Since all the three sides of the triangle are of equal length, we can find the perimeter by multiplying the length of each side by 3. To find the total length of a decorative lace to be pasted on outside borders, one needs to find the perimeter of the triangle. We can find the length of the fencing required for a triangular park by finding the perimeter of the triangle.Ī serving tray as shown forms an equilateral triangle – that is, a triangle with three equal sides. We need to find the length of the fence required to cover the park. Let’s understand this by using a real-life example. Perimeter of △ABC = AB + BC + CA = a + b + c We find the perimeter of triangle ABC by adding the length of all the three sides. For a triangle, we can find it by adding the lengths of its three sides. The perimeter of a polygon is the total length of the boundary. ![]() ![]() The triangle can be classified as equilateral, isoscles or scalene on the basis of the length of it’s sides. ![]() It is one of the basic shapes in geometry which has 3 sides and 3 vertices. When a tangent and a secant, two secants, or two tangents intersect outside a circle then the measure of the angle formed is one-half the positive difference of the measures of the intercepted arcs.A triangle is a three-sided closed figure. The tangent is always perpendicular to the radius drawn to the point of tangency.Ī secant is a line that intersects a circle in exactly two points. A line that intersects a circle in exactly one point is called a tangent and the point where the intersection occurs is called the point of tangency. ![]()
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