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z.29
Obwód L = [4 cm + 1,5 cm + 2,5 cm +1,5√2 cm] *2000 =
= [ 8 + 1,5√2] cm * 2000 =[16 000 + 3000√2 ] cm =
= [160 + 30√2] m
Pole
P = [2,5 *2000 * 1,5*2000] cm² + (1/2)*1,5*2000*1,5*2000 cm² =
= [5000 *3000] cm² + (1/2)*3000 *3000 cm² =
= 15 000 000 cm² + (1/2)*9 000 000 cm² =
= 15 000 000 cm² + 4 500 000 cm² = 19 500 000 cm² =
= 1950 m²
P=½(2.5+4)*1.5
P=½*9.75
P=4.875 cm²
Ob=2.5+4+1.5+x
x²=1.5²+1.5²
x²=2.25
x=√2.25
Ob=8+√2.25
26.
x 35
- -
12 28
28x=420
x=15
y 12
- -
10 15
15y=120
y=8
20 8
- -
z 10
8z=200
z=25
27.w załączniku
28.w załączniku