3-Oblicz pole trójkąta gdy długość boków są odpowiednio równe m, m+5, m+7. (GDY M=12)
a = m = 12
b = m +5 = 17
c = m+7 = 19
p = [a+b+c]/2 = [ 12 + 17 + 19]/2 = 48/2 = 24
Stosujemy wzór Herona
P = [ p*(p -a)*(p-b)*(p -c) ] ^(1/2)
P = [24*12*7*5] ^(1/2) = 10 080 ^(1/2) = [ 100*100,8]^(1/2)
P = 10 *100,8^(1/2) j^2 = około 100,4 j^2
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a = m = 12
b = m +5 = 17
c = m+7 = 19
p = [a+b+c]/2 = [ 12 + 17 + 19]/2 = 48/2 = 24
Stosujemy wzór Herona
P = [ p*(p -a)*(p-b)*(p -c) ] ^(1/2)
P = [24*12*7*5] ^(1/2) = 10 080 ^(1/2) = [ 100*100,8]^(1/2)
P = 10 *100,8^(1/2) j^2 = około 100,4 j^2
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