Question

POMÓŻCIE MAM ZADANE NA JUTRO Z MATEMY
1.OBLICZ POLE PONIZSZYCH TRAPEZÓW
A]27CM,19CM,18CM
B]3,3M,1,7M,2,2M
C]38CM,25CM,17CM
D]34DM,46DM,0,9DM
E]1DM,4DM,3,4DM,45DM
F]1,7DM,1,9DM,2,5DM

Answer 1

1.OBLICZ POLE PONIZSZYCH TRAPEZÓW
Wzór na pole trapezu
P=[(a+b)/2]*h

A]27CM,19CM,18CM
P=[(27+19)/2]*18=414cm²

B]3,3M,1,7M,2,2M
P=[(3,3+1,7)/2]*2,2=5,5m²

C]38CM,25CM,17CM
P=[(38+25)/2]*17=535,5cm²

D]34DM,46DM,0,9DM
P=[(34+46)/2]*0,9=36dm²

E]1DM,4DM,3,4DM, a to co jest? 45DM
P=[(1+4)/2]*3,4=8,5dm³

F]1,7DM,1,9DM,2,5DM
P=[(1,7+1,9)/2]*2,5=4,5dm³