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An isosceles triangle, one side is 30 cm long, the other side is 65 cm long, the triangle circumference is 30 cm
Isosceles triangle if the waist is 30 * 2 "65, so the waist is 65
65*2+30＝130+30＝160
If one side of an isosceles triangle is nine centimeters long and the other side is six centimeters long, the circumference of the triangle is nine centimeters long
Isosceles
1) If the base is 6, the waist is 9 and the circumference is 24
2) If the base is 9, the waist is 6 and the circumference is 21
If an isosceles triangle is 30 cm long on one side and 50 cm long on the other side, the perimeter of the triangle is~
30, 50, 110
30 50 circumference 130
If one side of an isosceles triangle is 3cm long and the other side is 6cm long, its perimeter is______ ．
When the waist of an isosceles triangle is 3cm, the three sides are 3cm, 3cm, 6cm, and the triangle is not established. When the waist of an isosceles triangle is 6cm, the three sides are 3cm, 6cm, 6cm, and the triangle is established. The perimeter is 3 + 6 + 6 = 15cm
The circumference of an isosceles triangle is 3.10 cm, and the length of one side is 8 cm, which is not equal to the length of the other side How much is less
30-8 × 2 = 14 (CM),
(30-8) △ 2 = 11 (CM),
A: the length of the side that is not equal to it is 14 cm, or it may be 11 cm
The circumference of an isosceles triangle is 30 cm, one side of which is 8 cm long, and the length of the other side which is not equal to it is 30 cm______ Centimeter, maybe______ Cm
(1) 30-8 × 2, = 30-16, = 14 (CM); (2) (30-8) △ 2, = 22 △ 2, = 11 (CM); so the answer is: 14, 11
The circumference of an isosceles triangle is 110 cm, and the length ratio of two sides is 4:3. The waist length of this isosceles triangle is () cm or () cm
40 33
The lengths of the two adjacent sides of an isosceles triangle are 4cm and 5cm respectively. What is the circumference of the triangle
Please help me
(1) Waist 4; base 5
Perimeter = 4 + 4 + 5 = 13 cm
(2) Waist 5; base 4
Perimeter = 5 + 5 + 4 = 14 cm
The circumference of an isosceles triangle is 120 cm, and the length ratio of two adjacent sides is 2:1. How many cm is the base of the isosceles triangle
Bottom 120 (1 + 2 + 2) = 24cm
The circumference of an isosceles triangle is 160cm. The ratio of the length of its waist to the length of its bottom is 3:2. The length of one waist of this triangle is longer______ Cm, bottom length______ Cm
Suppose the waist length of the triangle is x cm, then the bottom length is 23x cm, 2x + 23x = 160, 83x = 160, x = 160 × 38, x = 60; 23x = 23 × 60 = 40; therefore, this question should be filled in 60 and 40 respectively
RELATED INFORMATIONS
- 1. The circumference of an isosceles triangle is 160cm. The ratio of the waist length to the bottom length is 3:2. What is the waist length and the bottom length of this triangle
- 2. The ratio of the length of a waist to the length of the bottom of an isosceles triangle is 4:3. The circumference of the triangle is 528 cm. How many cm is the length of the bottom
- 3. An isosceles triangle, in which the length of two sides are 5 / 3 decimeter and 4 / 1 decimeter respectively, calculate the perimeter
- 4. It is known that the waist length of an isosceles triangle is 3 / 4 of the length of its base, and the length of one side is 11cm, then its circumference is_____________ .
- 5. If the vertex angle of an isosceles triangle is known to be 40 degrees, then the angle between the height of its waist and the bottom is 40 degrees______ ．
- 6. If the acute angle between the heights of the two waists of an isosceles triangle is 70 degrees, what are the degrees of the three internal angles of an isosceles triangle?
- 7. In ABC, ab = 7, AC = 5, BC = 3, find SINB, CoSb
- 8. It is known that △ ABC is an isosceles triangle, BD is high, and ∠ abd = 50 degrees It's a process
- 9. As shown in the figure, take the hypotenuse of the isosceles right triangle AOB as the right edge, make the second isosceles right triangle aba1 outward, and then use the isosceles right triangle a1bb1 Given OA = ob = 1, what is the area of the nth isosceles right triangle?
- 10. An isosceles right triangle, known hypotenuse is 9 cm. Seek side length. What is the formula?
- 11. The circumference of an isosceles triangle is 32cm. The length of the waist is 3 times longer than that of the bottom, which is 6cm more than that of the bottom. Find the length of each side
- 12. Be sure to see a reward. Pick up an isosceles triangle with a waist length of 10cm on a rectangular cardboard with a length of 17cm and a width of 16cm Very important, please answer with conscience! (one vertex of triangle and one vertex of rectangle are required to coincide, and the other two vertices are on the side length of rectangle). Please draw a figure or use words to show the detailed drawing process and find the method of drawing acute angle
- 13. It is known that the length of the base and the waist of an isosceles triangle are 6 and 5, respectively
- 14. The girth of an isosceles triangle is 16cm, the height of its bottom is 4cm
- 15. Let the length of one side of a triangle with an area of 12 square centimeters be a (?) and the height of this side be h (?). (1) find the analytic expression of the function of H with respect to a and the independent variable a Value range; (2) Is the function of H about a an inverse scale function? If so, please state its scale coefficient; (3) If the area of the triangle is changed to a fixed value s (square centimeter), and the rest is unchanged, find the analytic function of H with respect to a Solution
- 16. Draw a triangle with the largest area in a rectangle. The area ratio of the triangle to the rectangle is ()
- 17. Draw the largest triangle in the square. The area of the triangle is () of the area of the parallelogram
- 18. As shown in the figure, the rectangle efgh is connected to △ ABC, the bottom edge of △ ABC AC = B, the height BD = h, and the height eh = X. try to write out the functional relationship between the rectangle area s and X, and find out the value range of X
- 19. As shown in the figure, pdce is rectangular, ABCD is trapezoidal, plane pdce ⊥ plane ABCD, ∠ bad = ∠ ADC = 90 # 186;, ab = ad = # 189; CD = a, PD = √ 2 (1) If M is the midpoint of PA, the MDE of AC ‖ plane is proved; (2) Find the size of the sharp dihedral angle between planar pad and PBC
- 20. On the calculation of Newton's law 1. A truck with a mass of 50000kg runs along a smooth horizontal road at a speed of 0.3m/s, with a rope trailing behind it. If the tension of the rope is 250N, how long does it take to stop the truck? 2. There is a speed limit sign of 30km / h in a certain section. After the driver makes an emergency brake in this section, the inspector measures that the length of the brake trace is 12m. If the dynamic friction coefficient between the tire and the road is 0.6, ask the driver whether he has violated the speed limit specified in this section of the road. (hint: calculate the acceleration when braking from the braking friction, and then calculate the initial speed from the kinematic formula.)