Novice · Arithmetic · 18 of 264
Rectangle area and perimeter
Read the width and height of a rectangle and print its area and its perimeter.
Input: width and height, whole numbers, one per line. Output: Area: <area> on the first line, Perimeter: <perimeter> on the second.
Examples
Input
3 4
Output
Area: 12 Perimeter: 14
Input
10 10
Output
Area: 100 Perimeter: 40
Input
1 7
Output
Area: 7 Perimeter: 16
One more test checks other inputs when you press Check.
Stuck? The idea behind arithmetic
input() always gives text: turn it into a whole number with int() or a decimal with float() before doing sums.
+ - * / work as in maths; / always gives a decimal. // divides and drops the remainder, % gives the remainder, ** raises to a power.
a = int(input()) b = int(input()) print(a + b) print(a // b, a % b)
Watch for: "5" + "3" is "53", not 8: if a sum joins numbers together, an int() is missing.