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0 votes
The numbers 20, 21, 29 form a Pythagorean triple. Which are other sets of numbers a Pythagorean triple?

21, 22, 30
40, 42, 58
60, 66, 87
70, 84, 116

2 Answers

3 votes
an interesting propery of triplles is that if
a²+b²=c²
and a,b,c, is a tripple, then
ax,bx,cx is also a tripple when x=x

if we multiply 20,21,29 by 2 (mulitply all )
we get
40,42,58
that is 2nd option

answer is 2nd
User Burito
by
8.1k points
5 votes
The answer is 40, 42 and 58
40² + 42² = 58²
User Yasei No Umi
by
8.5k points

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