Oblicz pole trapezu równoramiennego, w którym górna podstawa wynosi ; dolna podstawa wynosi ; ramię wynosi . Z góry dziękuję ; *
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b = √2
a = 2√2
c = √37
x = a - b) : 2 = (2√2 - √2) : 2 = 2 : 2 = 1
x^2 + h^2 = c^2
1^2 + h^2 = (√37 )^2
h^2 = 37 - 1
h^2 = 36
h = 6 -------- wyskokość
P = 1/2 * (a + b) * h = 1/2 * (2√2 + √2) * 6 = 3 * 3√2 = 9√2