The circumference of an isosceles triangle is known to be 20 (1) If the waist length is seven, the bottom length is (2) the bottom length is seven, and the waist length is (3) if the length of one side is seven, and the length of the other two sides is?

The circumference of an isosceles triangle is known to be 20 (1) If the waist length is seven, the bottom length is (2) the bottom length is seven, and the waist length is (3) if the length of one side is seven, and the length of the other two sides is?

(1) Bottom = 20-2 × 7 = 20-14 = 6;
(2) Waist = (20-7) △ 2 = 6.5;
(3) If the waist is 7, the base = (20-7 × 2) = 6; the other waist = 7;
If the base is 7, waist = (20-7) △ 2 = 6.5;
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The circumference of isosceles triangle is 20 cm, and the range of waist length is calculated

The difference between the lengths of the two sides of a 3-corner is smaller than that of the third side
2X+Y=20 2X》Y
10》X》5

The circumference of an isosceles triangle is 20, the length of one side is 8, and the length of the other two sides is 20________

The circumference of an isosceles triangle is 20, the length of one side is 8, and the length of the other two sides is 20________
(1) The bottom is: 8, then the other two sides are: (20-8) / 2 = 6
(2) Waist: 8, then the other waist: 8, bottom: 4