1.
[tex] \frac{b + 34}{2} = 21[/tex]
b= 8 cm
2.
egale
3.
BA
4.
[tex] \frac{bd}{dc} = \frac{ab}{ac} = \frac{28}{32} = \frac{7}{8} [/tex]
[tex] \frac{bd}{bd + dc} = \frac{7}{7 + 8} [/tex]
[tex] \frac{db}{bc} = \frac{7}{15} [/tex]
BD=36×7:15=16.8
5.
76
6.
DQ=6 cm
