Given that the lengths of the two sides of an isosceles triangle are 5 and 10 respectively, the perimeter of the isosceles triangle is______ ．

When the waist of an isosceles triangle is 5, the three sides are 5, 5, 10, 5 + 5 = 10, the trilateral relationship does not hold. When the waist of an isosceles triangle is 10, the three sides are 5, 10, 10, the trilateral relationship holds, and the perimeter is 5 + 10 + 10 = 25

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1. P7. It is known that if one side of an isosceles triangle is 6 and the other side is 10, its circumference is equal to ()
2. The length of one side of an isosceles triangle is 7, and the length of one side is 9
3. The circumference of an isosceles triangle is 70 cm. The ratio of the length of a waist to the length of its bottom is 3:4. How many cm is the bottom of the triangle?
4. There are four numbers, the first three numbers are equal proportion series, the last three numbers are equal difference series, the sum of the first and last two terms is 21, and the middle two terms If it is a / Q, a, AQ, a (2q-1), how to solve it,
5. Given the relative vertices a (0, - 1) and C (2,5) of square ABCD, the coordinates of vertices B and D are obtained
6. It is proved that (1) B + e is an invertible matrix (2) (B + e) ^ (- 1) = 1 / 2 (a + b)` The second question is (B + e) ^ (- 1) = 1 / 2 (a + e)
7. If matrix AB = 0, then the relation between matrix A and matrix B Determinant a = 0, B = 0,
8. It is known that 248-1 can be divided by some two integers between 60 and 70, then the two numbers are () A. 61，62B. 61，63C. 63，65D. 65，67
9. The constant term of polynomial 3x ^ 2-5y is The problem is that the coefficient of the first order term of the polynomial 3x ^ 2-5y is, and the constant term is
10. The circumference of an isosceles triangle is 70 cm. The ratio of the length of a waist to the length of its bottom is 3:4. How many cm is the bottom of the triangle?
11. Given that the length of one side of an isosceles triangle is equal to 5 and the length of the other side is equal to 11, find the perimeter of the isosceles triangle
12. The base length of isosceles triangle with perimeter 4 is x, and the waist length is y. find the value range of X Such as the title
13. If the circumference of an isosceles triangle is 12, the length of one waist is x, and the length of the bottom edge is y, then the value range of X is y, and the value range of Y is y
14. The circumference of isosceles triangle is 10, the waist length is x, and the bottom edge length is y. find the value range of X
15. If the length of each side of an isosceles triangle is 3 and 6, how many centimeters is its circumference
16. If the sides of an isosceles triangle are 3 and 6, the perimeter is
17. If the two sides of an isosceles triangle are 2 and 5, then the perimeter of another isosceles triangle is 2 what
18. The ratio of the two adjacent sides of an isosceles triangle is 2:5. Its circumference is 108 cm. What is the length of its bottom edge?
19. If the lengths of the two sides of the isosceles triangle are 4cm and 2cm respectively, the height of the bottom edge is______ The area is______ ．
20. The three sides a, B, C of the unequal triangle ABC are integers and a & sup2; + B & sup2; - 3a-4b + 13 = 0 to find the value of C a²+b²-6a-4b+13=0 a²-6a+9+b²-4b+4=0 (a-3)²+(b-2)²=0 a=3,b=2 Because the perfect square is nonnegative a-b=1，a+b=5 one