Wysyłam załącznik (: Pozdrawiam .... PROSZĘ O POMOC ZADANIE 79 STR 53
a)
a=5
b= 4+5+6 = 15
P= (a+b)*h / 2 = (5 + 15) * 3 / 2 = 60 / 2 = 30
b) h = 4
a= 7
b= 4+ 7 = 11
P= (7+11)*4 / 2 = (18 * 4) / 2 [to w nawiasie nad ułamkiem] = 36
c) 10 = a√2 | *√2
10√2 = 2a | /2
5√2 = a
h=5√2=a√2
5 = a h = 5
P = (a+b) * h / 2 = (4 + 10) * 5 / 2 = 14 * 5 / 2 = 35
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a)
a=5
b= 4+5+6 = 15
P= (a+b)*h / 2 = (5 + 15) * 3 / 2 = 60 / 2 = 30
b) h = 4
a= 7
b= 4+ 7 = 11
P= (7+11)*4 / 2 = (18 * 4) / 2 [to w nawiasie nad ułamkiem] = 36
c) 10 = a√2 | *√2
10√2 = 2a | /2
5√2 = a
h=5√2=a√2
5 = a h = 5
P = (a+b) * h / 2 = (4 + 10) * 5 / 2 = 14 * 5 / 2 = 35