a. 3, 5, 7
b. 13, 14, 15
c. 15, 36, 39
d. 5, 10, 13
2007-10-28 11:18:36 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Use the pythagorean theorem.
2007-10-28 11:23:39 · answer #1 · answered by Demiurge42 7 · 0⤊ 0⤋
a. 3, 5, 7
3² + 5² = 7²
9 + 25 = 49
NO
b. 13, 14, 15
13² + 14² = 15²
169 + 196 = 225
NO
c. 15, 36, 39
15² + 36² = 39²
225 + 1296 = 1521
YES
d. 5, 10, 13
5² + 10² = 13²
25 + 100 = 169
NO
2007-10-28 18:25:56 · answer #2 · answered by Marvin 4 · 0⤊ 0⤋
answer pending
no a.3^2 + 5^2 = 34 not 7^2 = 49
no b.13^2 + 14^2 = 335 not 15^2 = 225
yes c.15^2 + 36^2 = 1521 equals 39^2 = 1521
no b.5^2 + 10^2 = 125 not 13^2 = 169
answer is c
2007-10-28 18:24:09 · answer #3 · answered by k2koolbchgrl 3 · 0⤊ 0⤋
A squared + B squared = C squared...
so the answer must be C. 15squared+36squared = 39squared because 15squared= 225, 36squared=1296, 225+1296=1521 which is equal to 39squared
2007-10-28 18:26:02 · answer #4 · answered by jackie.330 2 · 0⤊ 0⤋
The 3 sides a,b,c of a right triangle must
satisfy a²+b² = c²,
The only triple that works here is c. 15,36,39
because
15² = 225
36² = = 1296
Sum = 1521 = 39².
None of the other triples satisfy the condition.
2007-10-28 18:50:34 · answer #5 · answered by steiner1745 7 · 0⤊ 0⤋
c. (225 + 1296 = 1521)
2007-10-28 18:24:24 · answer #6 · answered by ? 3 · 0⤊ 0⤋
yup.. c
2007-10-28 18:26:22 · answer #7 · answered by Anonymous · 0⤊ 0⤋