IGCSE /Grade 8
Maths MCQ Based On Area of compound figures with triangles semicircles and quarter circles
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IGCSE Grade 8 Maths Area of compound figures with triangles semicircles and quarter circles
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Subtract the circumference of the quarter circle from the total perimeter to find the perimeter of the triangle.
Calculate the area of each quarter circle separately using the formula for the area of a quarter circle. Then, find the area of the rectangle using its formula.
Subtract the area of quarter circle from the area of whole circle.
Calculate the circumference of the semicircle using the formula πr + 2r, where r is the radius of the semicircle.
Calculate the area of the equilateral triangle using its formula. Then, find the areas of the semicircle and the quarter circle using their respective formulas.
Calculate the circumference of the quarter circle and the perimeter of the triangle separately, then add them together.
Calculate the area of the quarter circle first using the formula for the area of a quarter circle. Then, find the area of the triangle using the formula for the area of a triangle.
Area of figure = \\(2\\times\\) Area of one triangle. Also find height of triangle by taking half value of the base side as base and 5cm as hypotenuse and find area of the triangle.
Area of an equilateral triangle = \\((\\frac{\\sqrt{3}}{4}a^2)\\)
first find perpendicular or height using pythagorus theorem then find area of the triangle.
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