a=8cm
b=?
d=b+2
z twierdzenia pitagorasa a²+b²=c²
8²+b²=(b+2)²
8²=(b+2) ²-b²
64=b²+4b+4 -b²
60=4b /:4
b=15
d=17
P=a*b=8*15= 120cm²
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a=8cm
b=?
d=b+2
z twierdzenia pitagorasa a²+b²=c²
8²+b²=(b+2)²
8²=(b+2) ²-b²
64=b²+4b+4 -b²
60=4b /:4
b=15
d=17
P=a*b=8*15= 120cm²