
Explore how to compute areas of common geometric figures, including rectangles, triangles, parallelograms, trapeziums, and kites, using base–height and diagonal products.
Learn the circle basics: use pi ≈ 3.14, compute circumference via C = pi d or C = 2 pi r, and area via pi r^2, with practical examples.
Explore circle theorems by applying that a central angle is twice an inscribed angle subtending the same arc, and that angles in the same segment are equal.
Explore arc length and sector area in circles, including minor and major arcs and sectors, quadrants, and semicircles, with formulas for arc length and sector area.
Explore the chord of a circle, how the center to chord midpoint bisects it at right angles, and compute central angles, sector and triangle areas, and the minor segment.
Explore volume concepts by examining prisms and cylinders, derive volume as cross-sectional area times height, with area of a circle as pi r squared and practical examples.
Learn to compute surface areas for cylinders, spheres, and cones using radius, height, and slant height. Solve for dimensions from given surface areas and apply area-based costs.
In this course the students will learn about the circle, circle theorems, how to find the volume and surface area of the geometric figures .
Archimedes of Samos (287-212 B.C ) studied at Alexandria as a young man . One of the first to apply scientific thinking to everyday problems, he was a practical man of common sense. He gave proofs for finding the area , the volume and the center of gravity of circles, spheres, cones and spirals. He was killed in the siege of Syracuse at the age of 75.
Mensuration is a division of mathematics that studies geometric figure calculation and its parameters such as area, length, volume, lateral surface area, surface area, etc. It outlines the principles of calculation and discusses all the essential equations and properties of various geometric shapes and figures.
Mensuration may refer to:
Measurement
Theory of measurement
Mensuration (mathematics), a branch of mathematics that deals with measurement of various parameters of geometric figures and many more
Forest mensuration, a branch of forestry that deals with measurements of forest stand
Mensural notation of music
Mensuration canon, a musical composition wherein the main melody is accompanied by one or more imitations of that melody in other voices
Name of Shape Shape Formula Square Perimeter = 4 x s
Area = s x s
Rectangle Perimeter = 2l + 2w
Area = l x w
Parallelogram Perimeter = 2l + 2b
Area = base x height
Rhombus Perimeter 4 x a
Area = (d1 x d2)/2
Triangle Perimeter = a + b + c
Area = (b x h)/2Equilateral
Triangle Perimeter = 3 x a
Area = (√3 a 2 ) / 4
Trapezoid Perimeter = sum of all sides
Area = (a + b) x h / 2
Circle Circumference = 2 x π x r
Area = π x r 2
Semicircle Circumference = π x r x D
Area OF Semi circle = (π r 2 )/2