The Czech Republic

Flag image from wwp.greenwichmeantime.com

“The flag of the Czech Republic, last adopted on 30 March 1920, features the Slavic colors of red, white, and blue. A blue triangle is situated on the left-hand side, and white sits above the red on the right side. White, the traditional color of Bohemia, represents the sky; red represents Moravia and the blood shed for freedom; and blue, the traditional color of Slovakia, represents sovereignty. In 1993, when Czechoslovakia became two independent states, the Czech Republic kept this flag as its symbol.”

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• The area of the blue acute equilateral triangle is 5089.5 millimeters squared.
• The perimeter of the blue acute equilateral triangle is 327 millimeters.
• The area of the white scalene trapezoid is 7656 millimeters squared
• The perimeter of the white scalene trapezoid is 427 millimeters
• The area of the red scalene trapezoid is 7656 millimeters squared
• The perimeter of the red scalene trapezoid is 427 millimeters
• The total area of the flag is 20,475 millimeters squared.
• The total perimeter of the flag is 584 millimeters.
• The trapezoids are congruent.
• The flag is a rectangle
• The flag has one line of symmetry
• The diagonal of the flag is 210.51 mm.
• The trapezoids are scalene
• The  blue acute equilateral triangle has one line of symmetry.
• The  blue acute equilateral triangle has a height of 87 mm.
• All angles of the blue acute equilateral triangle are 70 ○
• The acute angle of the white scalene trapezoid is 50 ○
• The acute angle of the red scalene trapezoid is 50 ○
• The obtuse angle of the white scalene trapezoid is 130 ○
• The obtuse angle of the red scalene trapezoid is 130 ○
• All other angles on the flag are 90 ○ making them right angles.

Please Note: The flag used to measure the dimmensions above is not the same one as is shown in the picture above.