Question

Zadania 2.4 i 2.9

Answer 1

2.4
P = ½ * a * h
P = ½ * 3√6 * 2√3
P = ½ * 6√(6*3)
P = 3√18
P = 3* 2√3
P = 6√3

2.9
T = [a(x+y+z)]/3 |*3
3T = a(x+y+z) |:a
3T/a = x+y+z
(3T/a) - y - z = x

2.7
(2a-b)(c-2d) = 2ac - 4ad - bc + 2bd