Web5 jul. 2024 · Here is another method for calculating the area of an equilateral triangle. The formula for the area of an equilateral triangle is Area = √3 / 4 a 2, where a is the length of one of the sides. In this example, a = 8 metres. Area = √3 / 4 a 2 becomes Area = √3 / 4 × 8 2. This works out as 27.7 m 2. Both methods give the same answer. WebAnswer (1 of 52): depends on how much information you have about the triangle, and what type of triangle it is. all triangles will obey the law A = 1/2 ab sin C. here, a, b, and c are sides of a triangle, while A, B and C are angles opposite to sides a, b, and c. if you have two sides, and the...
Heron’s Formula for the Area of a Triangle with 3 Sides
WebArea of the rectangular part of the wall: 6.6 × 11.6 = 76.56m 2. Area of the triangular part of the wall: (5.8 × 11.6) ÷ 2 = 33.64m 2. Add these two areas together to find the total area: 76.56 + 33.64 = 110.2m2. As you know that one litre of paint covers 10m 2 of wall so we can work out how many litres we need to buy: Web28 mrt. 2024 · Substituting h into the first area formula, we obtain the equation for the equilateral triangle area: area = a² × √3 / 4. 2. Using trigonometry. Let's start with the trigonometric triangle area formula: area = (1/2) × a × b × sin (γ), where γ is the angle between the sides. We remember that all sides and all angles are equal in the ... philly cheese steak harrisburg pa
Area of a triangle (video) Plane figures Khan Academy
WebInstead of adding the area of two rectangles up like the previous examples you can do something very different: Work out the area a large shape around the compound shape. In this case, you can do 7x7 to work out the area of the compound shape and the small area of a shape that has been cut out! This is represented by the green lines on the example. Web13 aug. 2024 · To calculate the area of a triangle, multiply the height by the width (this is also known as the 'base') then divide by 2. Find the area of a triangle where height = 5 … Web26 mrt. 2016 · Check out how this formula works in an actual problem. The triangle shows the measures of two of its sides and the angle between them. To find the area of the triangle: Use the formula. inserting the values that you know. Solve for the value of the area. The area is about 8,660 square units. philly cheese steak highlands ranch