Perimeter, Area and VolumeEdexcel GCSE Maths: Flashcards
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What is the formula for the perimeter of a triangle?
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- What is the formula for the perimeter of a triangle?
- Perimeter of a triangle = a + b + c, where a, b and c are the lengths of the three sides.
- State the formula for the area of a rectangle.
- Area of a rectangle = length × width
- What is the formula for the area of a triangle?
- Area of a triangle = ½ × base × height
- Define the area of a parallelogram.
- Area of a parallelogram = base × perpendicular height
- What is the formula for the area of a trapezium?
- Area of a trapezium = ½ × (a + b) × h, where a and b are the parallel sides and h is the perpendicular height.
- State the formula for the circumference of a circle.
- Circumference = πd or 2πr, where d is diameter and r is radius.
- What is the formula for the area of a circle?
- Area of a circle = πr², where r is the radius.
- How do you calculate the area of a sector of a circle?
- Area of a sector = (θ/360) × πr², where θ is the angle at the centre in degrees and r is the radius.
- State the formula for the arc length of a sector.
- Arc length = (θ/360) × πd or (θ/360) × 2πr, where θ is the angle at the centre in degrees.
- What is the formula for the volume of a prism?
- Volume of a prism = cross-sectional area × length
- State the formula for the volume of a cylinder.
- Volume of a cylinder = πr²h, where r is the radius and h is the height.
- What is the formula for the surface area of a cylinder?
- Surface area of a cylinder = 2πr² + 2πrh, where r is the radius and h is the height.
- State the formula for the volume of a pyramid.
- Volume of a pyramid = ⅓ × base area × height
- What is the formula for the volume of a cone?
- Volume of a cone = ⅓πr²h, where r is the radius of the base and h is the perpendicular height.
- State the formula for the volume of a sphere.
- Volume of a sphere = ⁴⁄₃πr³, where r is the radius.
- What is the formula for the surface area of a sphere?
- Surface area of a sphere = 4πr², where r is the radius.