Odpowiedź:
a) P=a*b
a=2√6
b=5√3
P=2√6*5√3=10√18j²=10√9*√2=30√2j²
b)
[tex]p = \frac{a \times h}{2} [/tex]
a=2√2+√2=3√2
[tex]b = \frac{2 \sqrt{6} }{3} [/tex]
[tex]p = \frac{3 \sqrt{6} \times \frac{2 \sqrt{6} }{3} }{2} = \frac{ \sqrt{6 } \times 2 \sqrt{6} }{2} = \frac{12}{2} {j}^{2} = 6 {j}^{2} [/tex]
c)
[tex]p = \frac{(a + b) \times h}{2} [/tex]
a=2√5
b=2√5+√5=3√5
h=√15
[tex]p = \frac{(2 \sqrt{5} + 3 \sqrt{5}) \times \sqrt{15} }{2} = \frac{5 \sqrt{5} \times \sqrt{15} }{2} = \frac{5 \sqrt{75} }{2} {j}^{2} = \frac{5 \sqrt{25 \times 3} }{2} = \frac{25 \sqrt{3} }{2} {j}^{2} = 12 \frac{1}{2} \sqrt{3} {j}^{2} [/tex]
Liczę na naj ;)
