Question

Help me please!Number 5 and a speal ruasian

Answer 1

Sт=1/2 * h * (a+b)
Sт=0,5 * 6 * (7+3)
Sт=3*(7+3)
Sт=21+9
Sт=30

Answer 2

Sт=30 + Sп=(1*6)/2

Answer 3

Sт=33

Answer 4

4) другой ответ