11.8.4. Heron's Formula

Given that the side length of a rhombus is cm, and the measure of one of its angles is , determine its area to the nearest .

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Use Heron's formula to find the side length of an equilateral triangle approximated to the nearest centimetre, given that the triangle’s area is .

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Find the radius of the inscribed circle of the triangle to the nearest two decimals, given that cm, cm, and .

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Find the surface area of a triangle whose side lengths are 5, 10, and 13 centimeters using Heron's formula.

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Find the area of a triangle whose two side lengths are cm and cm, and the angle included between them is .

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Determine the area of the quadrilateral to the nearest 3 decimal places.

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Determine the area of the figure below to the nearest 3 decimal places.

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Using Heron's formula, determine the area of the equilateral triangle whose side length is cm approximated to the nearest 3 decimal places.

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Determine to the nearest 3 decimal places the area of an isosceles triangle whose side length is cm and base angle is .

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Determine the area of the figure below using Heron's formula.

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Determine the area of the figure below to the nearest 3 decimal places using Heron's formula.

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Find the surface area of the figure below using Heron's formula.

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Find, to the nearest hundredth, the area of quadrilateral in which , cm, cm, cm, and cm.

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Find the area of the figure below to the nearest 3 decimal places using Heron's formula.

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Given that the perimeter of the rhombus below is cm and cm, use Heron's formula to find its area approximated to the nearest 3 decimal places.

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Find, to the nearest three decimal places, the surface area of an isosceles triangle whose perimeter is cm, and the length of one of its two equal sides is cm.

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