The circumference of an isosceles triangle is 16 cm, and the height at the bottom is 4 Li wood. Find the length of each side of the triangle`

The circumference of an isosceles triangle is 16 cm, and the height at the bottom is 4 Li wood. Find the length of each side of the triangle`

Let the waist length be X
Then the bottom edge is 16-2x and half of the bottom edge is 8-x
The square of (8-x) + the square of 4 = the square of X. after the solution, x = 5~
The bottom is 6cm

The common part of the two triangles A and B is 1 / 9 of the triangle a and 1 / 6 of the triangle B. the area of the triangle a is 1 / 6 of the triangle B
If you can't type a picture, if you have a picture, you need to answer the questions accurately. What's the number of parts?

A is nine times as much as the public part, B is six times as much
So a is 9 / 6 of B = 3 / 2

The total area of triangle a and triangle B is 1 / 9 of that of triangle a, 1 / 6 of that of hundred million triangles, and the area of triangle a is a few parts of that of hundred million triangles
2=3/2
Can it be written as 1 / 2

3: 2 = 3 / 2 = 1 and 1 / 2
But in this problem, even in the general specific situation (non calculation problem), the,
Generally, we use true and false scores, but we don't use scores