Question

Find the length of the unknown side. Round your answer to the nearest whole number.

A. 7
B. 9
C. 10
D. 12

2. The numbers 20,21,29. form a Pythagorean triple. Which other set of numbers is a Pythagorean triple?

A. 21,22,30
B. 40,42,58
C. 60,66,87
D. 70,84,116

Answer 1

what is the figure? for number one?

Answer 2

For #2, all multiples of Pythagorean triples remain Pythagorean triples, for example
3,4,5 and 6,8,10 are Pythagorean triples.

Answer 3

the missing side is the hypotenuse so your equation would be \[a ^{2}+b ^{2}=c ^{2}\]

Answer 4

or called at pathagory thereom

Answer 5

so it would be

\[a ^{2}+b ^{2}=c ^{2} ...7^{2}+7^{2}=c ^{2}...c ^{2}= 14^{2}\]

Answer 6

now 14 times 14 = 196
and since its squared you need to find the square root

Answer 7

Ouch!
\( 7^2 + 7^2 = 49+49 =98 \ne 14^2 \)