An isosceles triangle vegetable field, the ratio of the bottom to the waist is 4:3, the perimeter is 160 meters, the length of the bottom is () meters

An isosceles triangle vegetable field, the ratio of the bottom to the waist is 4:3, the perimeter is 160 meters, the length of the bottom is () meters

4+3+3=10
160*4/10=64
The bottom is 64 meters long

An isosceles triangle, the circumference is 48 cm, the bottom is 2 / 5 of the waist length. How long is the bottom

Suppose the waist length is xcm and the bottom edge is 2 / 5xcm
2x+2/5x=48
x=20
So, the bottom edge is 2 / 5 * 20 = 8cm

If the degree ratio of the three inner angles of a triangle is 3:4:5, and the longest side ratio is the shortest 4cm, then the perimeter of the triangle is___ cm.

If the degree ratio of the three internal angles is 3:4:5, it is easy to get the three internal angles as a = 45 °, B = 60 ° and C = 75 ° respectively. Because a = 4, according to the sine theorem, B = asinb / Sina = 2 √ 6, according to the cosine theorem, B & # 178; = A & # 178; + C & # 178; - 2Ac & # 8226; cos60 °, 24 = 16 + C & # 178; - 4C, C & # 178; - 4c-8 = 0, C = 2

Make a triangle frame with two sticks 3cm and 14cm in length. If its circumference is even, what is the length of the third side

According to the fact that the difference between the two sides of the triangle and the third side is less than the third side, 17 > the third side > 11
So you can take 12, 13, 14, 15, 16
Make the perimeter even
So the third side could be 13, 15

If both sides of a triangle are 7 and 2, and its circumference is even, the length of the third side is ()
A. 8B. 7C. 6D. 3

The lengths of the two sides of the ∵ triangle are 7 and 2 respectively. The value range of the ∵ third side is 5 ＜ x ＜ 9. The ∵ perimeter is even. The number that meets the condition is 7. The length of the ∵ third side is 7

It is known that the lengths of the two sides of the triangle are 2cm and 7cm respectively, and the value of the third side is even. Find the perimeter of the triangle
the sooner the better!

The sum of any two variables of triangle type is greater than the third edge
It's even again
So there are two situations
1 7cm edge is the longest edge
Then the third side x + 2 > 7 and X

If the lengths of the two sides of a triangle are 7cm and 2cm respectively, and its circumference is even, then the length of the third side is______ ．

Let the length of the third side be xcm, then 7-2 < x < 7 + 2, that is, 5 < x < 9

Given that the lengths of two sides of a triangle are 2cm and 7cm, and the value of the third side is odd, the perimeter of the triangle is______ ．

Let the length of the third side of the triangle be xcm. From the meaning of the question, we can get: 7-2 ＜ x ＜ 7 + 2, the solution is: 5 ＜ x ＜ 9, ∵ the value of the third side is odd, ∵ x = 7, ∵ the perimeter of the triangle is: 2 + 7 + 7 = 16 (CM), so the answer is: 16

If the length of two sides of a triangle is 2cm and 7cm respectively, and the length of the third side is an even number, then the length of the third side is -- and the perimeter of the triangle is --

If the sum of the two sides of a triangle is greater than the third side, and the third side is x, then there is:
7-2

Given that the two sides of a triangle are 2cm and 7cm, and the perimeter is even, find the length of the third side
the sooner the better!

Because the sides of the triangle are 7 and 2
The sum of the two sides of the triangle is greater than the third side, and the difference between the two sides is less than the third side
So the length range of the third side is 5-9 (excluding 5 and 9)
If its circumference is even, the length of the third side is only 7