In triangle ABC, if AB = 3cm, AC = 8cm, the length of BC is odd, try to find the perimeter of angle ABC

AC-AB

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1. If AB = AC = 10 in △ ABC is known, de bisects AB vertically and intersects AC with E. if the perimeter of △ BEC is known to be 16, find the perimeter of △ ABC
2. AC = AB, de bisects AB vertically, intersects AB with D, intersects AC with E. if the perimeter of triangle ABC is 28, BC = 8, find the perimeter of triangle bec
3. Given the angle ABC = angle c, De, the circumference of the intersection AC of AB and the triangle BEC of point E is 10, AC BC = 2 Given that the angle ABC = angle c, de bisects the intersection of AB vertically, the perimeter of AC and point e triangle BEC is 10, AC BC = 2, find the perimeter of triangle ABC! But I just can't think of it. It's more difficult. I think of it. Just give me an idea!
4. In △ ABC, ab = AC,
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11. In the triangle ABC, if AB = 3, AC = 8, the length of BC is odd, try to find the perimeter of the triangle ABC
12. In △ ABC, ab = AC, the vertical bisector of AB intersects at point D and AC intersects at point e. it is known that the perimeter of △ BCE is 8 and ac-bc = 2. The lengths of AB and BC are obtained
13. In RT △ ABC, the bisector be, the perpendicular BC, the perpendicular foot E and BC = 20 are used to calculate the perimeter of △ Dec
14. As shown in the figure, the perimeter of the right angle △ ABC is 18. There are five small right triangles in it, and the right sides in the same direction are parallel to each other. Find the sum of the perimeter of the five small right triangles
15. As shown in the figure, in the triangle ABC, ad is vertical to BC, be is vertical to AC, CF is vertical to AB, and the perpendicular feet are D, e, F. BC equals 16, ad equals 3, CF equals 6. Calculate the circumference of ABC
16. In equilateral △ ABC, points D and E are on edges BC and ab respectively, and BD = ae
17. As shown in the figure, D is the midpoint of the waist AC of the isosceles right triangle ABC, connecting BD, making AE through a, vertical BD, side BC at e, try to explain, ∠ ADB = ∠ CDE
18. On the site of right triangle ABC, the angle bisector AE of ∠ B = 90 ° AB = AC intersects at point E Party A and Party B start from a at the same time and go along the AC and A-B-E lines at the same speed. Party A's destination is C and Party B's destination is e. please judge which of Party A and Party B arrive at their respective destinations first? And explain the reason
19. If △ ABC ∽ CAD, ∠ ACB = ∠ ADC = 90, BC = a, AC = B, ab = C, then CD is equal to Please use letters Thank you in advance
20. Known: as shown in the figure, in triangle ABC, angle ACB = 90, AC = BC, CD / / AB, and ab = ad