Compare Square Diagonals vs Sides: 11-Unit Square Analysis

Question

Look at the square below:

111111

Is the sum of the two diagonals greater than the sum of the 3 sides of the square?

Video Solution

Solution Steps

00:00 Is the sum of diagonals greater than the sum of 3 sides of the square?
00:03 In a square, all sides are equal
00:07 We'll use the Pythagorean theorem in triangle BCD
00:11 We'll substitute appropriate values and solve for BD
00:23 This is the length of diagonal BD
00:27 In a square, the diagonals are equal
00:31 Let's calculate the sum of diagonals
00:36 We'll substitute appropriate values and solve for the sum
00:42 Let's calculate the sum of 3 sides of the square
00:49 We'll substitute appropriate values in the equation
00:56 And this is the solution to the question

Answer

False