Եռանկյան միջնագծերը, կիսորդները և բարձրությունները
![](https://koryun.gaboyan.am/wp-content/uploads/2021/12/image-7.png)
![](https://koryun.gaboyan.am/wp-content/uploads/2021/12/image-10.png)
BC=45:3=15
AB=(40-15):2=12.5
![](https://koryun.gaboyan.am/wp-content/uploads/2021/12/image-17.png)
![](https://koryun.gaboyan.am/wp-content/uploads/2021/12/image-15.png)
P=AB+AC+BC=32
PABM=AB+BC:2+AM=24
32:2=16
24=AM+16
AM=8
![](https://koryun.gaboyan.am/wp-content/uploads/2021/12/image-9.png)
![](https://koryun.gaboyan.am/wp-content/uploads/2021/12/image-11.png)
CD=BD, <1=<2, AD=AD, CD=CD=>եռ. ACD=եռ.ABD=>AC=AB
![](https://koryun.gaboyan.am/wp-content/uploads/2021/12/image-12.png)
![](https://koryun.gaboyan.am/wp-content/uploads/2021/12/image-13.png)
AB=BC, <1=1300
<1+<2=1800
180-130=500
![](https://koryun.gaboyan.am/wp-content/uploads/2021/12/image-18.png)
![](https://koryun.gaboyan.am/wp-content/uploads/2021/12/image-21.png)
CA=C1A1, MA=M1A1, <1=<2=>եռ.CMA=եռ.C1M1A1=>CM=C1M1