Question

oblicz pola trapezów dla:

1 a=9cm

b=3cm

h=3cm

2 a= 5cm

b=3cm

h= 4cm

3 a=5cm

b=1cm

h=2cm

4 a=7cm

b=5cm

h= 3cm

5 a=4cm

b= 8cm

h=3cm

6 a=3cm

b=2cm

h=4cm

PROSZE SZYBKO DAJE NAJ

Answer 1

 

Answer 2

1 a=9cm

b=3cm

h=3cm

 

P = (a+b)/2 * h

 

P1 = (9+3)/2 * 3  = 18 cm^

 

2 a= 5cm

b=3cm

h= 4cm

 

P2 = (5+3)/2 * 4 = 16 cm^

 

3 a=5cm

b=1cm

h=2cm

 

P3 = (5+1)/2 * 2 = 6 cm^

 

4 a=7cm

b=5cm

h= 3cm

 

P4 = (7+5)/2 * 3 = 18 cm^

 

5 a=4cm

b= 8cm

h=3cm

 

P5 = (4+8)/2 * 3 = 18 cm^

 

6 a=3cm

b=2cm

h=4cm

 

P6 = (3+2)/2 * 4 =2,5 * 4 = 10