Geometry Calculator

Calculate area, perimeter, surface area, and volume for common shapes

Area
78.5398
cm²
Perimeter
31.4159
cm
Formula
Area = π × r²
Perimeter = 2 × π × r
Step-by-step Solution
  1. r = 5 cm
  2. Area = π × r²
  3. Area = π × 5² = π × 25
  4. Area = 78.5398 cm²
  5. Perimeter = 2 × π × r = 2 × π × 5
  6. Perimeter = 31.4159 cm