Дэлгээс ашиглан гадаргуугийн талбай олох (видео) | Хан Академи
That''s this blue area. So that''s going to be 460, 460 square centimeters. 460 square centimeters, and now we just have to figure out the area of the two flaps. So this flap right over here is 20 centimeters by three centimeters. So that''s 60 centimeters squared. So 60 centimeters squared, or 60 square centimeters I should say.
