how to find the surface area of a leaf?
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['Lay the leaves to be measured on a 1-cm grid and trace their outlines.', 'Count the number of square centimeters. Estimate the area of the partial squares. ... ', 'Do not include the area of the stem (petiole) in your calculations.']
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The surface area is the area of the rectangular base (length width) plus the areas of each of the four triangular faces. The area of a triangle is 1/2 base height so all that remains is to find the height of each of the triangular faces.
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Curved Surface Area of a Cone. To find the curved surface area of any cone, multiply the base radius of the cone by pi. Now multiply your answer by the length of the side of the cone. If you want to total surface area remember to add on the area of the base of the cone.
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Originally Answered: How do you calculate the surface area of a quarter of a cylinder? To get the total surface area it would be two times the surface area of one of the circles plus the area of the rectangle.
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1 Answer. The formula for surface area of a right triangle is A = b∙h2 where b is base and h is height.
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Take half the diameter, square it, multiply it by pi (3.1416) - that is the area of the end. Take the diameter, multiply it by pi, multiply it by the cylinder length - that is the area of the curved surface. Add the two areas together and you have the total surface area of the cylinder with one end open.
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The formula for the total surface area of a right cone is T. S. A=πrl+πr2 . Example 2: Find the total surface area of a right cone if the radius is 6 inches and the slant height is 10 inches.
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To find the surface area of a sphere, use the formula (4πr2), where r = the radius of the circle.
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['When we need to find length of a rectangle we need to divide area by breadth.', 'Length of a rectangle = Area ÷ breadth.', 'ℓ = A ÷ b.', 'Similarly, when we need to find breadth of a rectangle we need to divide area by length.', 'Breadth of a rectangle = Area ÷ length.', 'b = A ÷ ℓ']
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To find the area of a rectangle, multiply the length by the width. The formula is: A = L * W where A is the area, L is the length, W is the width, and * means multiply.
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To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.
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There are two ends so their combinded surface area is 2 π * r2. The surface area of the side is the circumference times the height or 2 π * r * h, where r is the radius and h is the height of the side.
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Lateral surface area of a conical frustum: S = π * (r1 + r2) * s = π * (r1 + r2) * √((r1 - r2)2 + h2)
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Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.
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The formula to find the surface area of a rectangular prism is A = 2wl + 2lh + 2hw, where w is the width, the l is the length, and the h is the height. To use this formula, we plug in our values and then evaluate.
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The Hollow Hemisphere Formula listed here is used to calculate Volume and surface area of a Hollow Hemisphere. To calculate Surface Area, square the radius and multiply it with 2 and Pi. To calculate the volume, cube the radius and multiply it with 3 and Pi. Then divide the answer by 2.
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['Diameter of a hemisphere: d = 2 * r ,', 'Volume of a hemisphere: V = 2/3 * π * r³ ,', 'Base surface area of a hemisphere: Ab = π * r² ,', 'Cap surface area of a hemisphere: Ac = 2 * π * r² ,', 'Total surface area of a hemisphere: A = 3 * π * r² ,']