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(1√2)²+(2√2)²=x²
1*2+4*2=x²
2+8=x²
x²=10
x=√10 cm
Odp:Bok tego rąbu wynosi √10 cm.
13/147
(24-6):2=18:2=9cm
9²+h²=15²
h²=225-81
h²=144
h=√144 cm
h=12 cm
P=(a+b)*h / 2
P=(6+24)*12 / 2
P=360 / 2
P=180cm²
Odp:Pole tego trapezu wynosi 180cm²
15/147
a²+a²=b²
2a²=100/:2
a²=50
a=√50
a=5√2
P=1/2*a*a
P=1/2*5√2*5√2
P=1/2*(5√2)²
P=1/2*25*2
P=1/2*50
P=25 cm²
Odp:Pole tego trójkąta wynosi 25cm ²