Question

va rog rapid am nevoie​

Answer 1

1.

$\frac{b + 34}{2} = 21$

b= 8 cm

2.

egale

3.

BA

4.

$\frac{bd}{dc} = \frac{ab}{ac} = \frac{28}{32} = \frac{7}{8}$

$\frac{bd}{bd + dc} = \frac{7}{7 + 8}$

$\frac{db}{bc} = \frac{7}{15}$

BD=36×7:15=16.8

5.

76

6.

DQ=6 cm