![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
If the lengths of the two sides of the triangle are 3 and 5 respectively, the value range of the perimeter L is () A. 6＜L＜15B. 6＜L＜16C. 11＜L＜13D. 10＜L＜16
According to the trilateral relation of triangle, if the third side is greater than 2 and less than 8, then the value range of perimeter L is greater than 10 and less than 16
If the side lengths of the triangle are 3 and 5, then the value range of perimeter L is?
10
If the two sides of a triangle are 3 and 8, and the third side is odd, the perimeter of the triangle is ()
A. 18B. 19C. 20d. 18 or 20
Let the length of the third side be X. according to the trilateral relationship of the triangle, there is 8-3 ＜ x ＜ 8 + 3, that is, 5 ＜ x ＜ 11. So x = 7 or 9. So perimeter = 3 + 7 + 8 = 18 or 9 + 7 + 8 = 20. So D
RELATED INFORMATIONS
- 1. If the lengths of the two sides of the triangle are 3 and 7 respectively, the value range of the third side length C is 0___ When the perimeter is odd, the third edge is______ When the perimeter is a multiple of 5, the third side length is________ .
- 2. The sides of an isosceles triangle are 3 and 7. The circumference of the triangle is______ ．
- 3. If the two sides of an isosceles triangle are 3 and 7, the perimeter of the triangle is_________ .
- 4. Xiaojun and Xiaoli go home from school. Xiaojun's distance is one sixth less than Xiaoli's, and Xiaoli's time is one ninth more than Xiaojun's. what's the speed ratio between Xiaojun and Xiaoli?
- 5. If the perimeter of triangle ABC is 8 and all three sides are natural numbers, what is the area of triangle ABC
- 6. If the side length of the middle small equilateral triangle is known to be 1, then the circumference of the hexagon is 1______ ．
- 7. If the figure is a hexagon composed of nine equilateral triangles, it is known that the side length of the smallest equilateral triangle in the middle is a, then the circumference of the enclosed hexagon is () A. 30ab. 32AC. 34ad
- 8. The perimeter of a rectangle is equal to that of a square with a side length of 12 cm. The length of the rectangle is 14 cm. How many cm is its width?
- 9. Each side of a triangle is 4cm long, and its circumference is 120cm. Find the longest side The length difference of each side of a triangle is 4cm. Its perimeter is 120cm. How many cm is the longest side?
- 10. The circumference of an isosceles triangle is seven tenths of a meter, and its base is one fifth of a meter
- 11. If the two sides of the triangle are 3 and 5, then the range of the circumference y of the triangle is () A. 2 ＜ y ＜ 8b. 10 ＜ y ＜ 18C. 10 ＜ y ＜ 16d
- 12. Take any three sticks of 6cm, 5cm, 4cm, 3cm and 2cm in length to make different triangles?
- 13. Take three sticks of 1cm, 3cm, 4cm, 4cm, 4cm, 5cm to form a triangle, which can put several different triangles
- 14. If the length of the third stick is even, how to make it () species?
- 15. The lengths of the two sticks are 3cm and 5cm respectively. The third stick should be selected and nailed into a triangle. If the length of the third stick is even, the length of the third stick is______ cm．
- 16. The circumference of an isosceles triangle is 16 cm, the height at the bottom is 4 cm, how many cm is the waist Think () + () = the circumference of an isosceles triangle Let () be X Equation ()
- 17. It is known that the median line on the waist of an isosceles triangle is divided into two parts with circumference of 20 and 36. Find the length of the bottom and waist of the triangle I remember again, Set: waist a, bottom B 0.5a+b=20 a+0.5a=36 、/ A = 24 b=8 2; 0.5a+a=20 0.5A + B = 36 does not hold
- 18. The circumference of isosceles triangle is 12cm, the difference between one side and the other side is 3cm, and the length of three sides is 3cm______ ．
- 19. As shown in the figure, we know that the perimeter of an isosceles triangle is 16, and the height of its bottom edge is 4
- 20. It is known that the circumference of an isosceles triangle is 16 cm (1). If the length of one side is four cm, find the length of the other two sides