Answer:
D
Explanation:
The area of a square is the side length squared
Let's go through each answer choice:
A. 3²+5²=9+25=36
8²=64
36 is not equal to 64 therefore A is wrong
B. 8²+10²=64+100=164
17²=289
164 is not equal to 289 therefore B is wrong
C. 5²+10²=25+100=125
13²=169
125 is not equal to 139 therefore C is wrong
D. 12²+35²=144+1225=1369
37²=1369
1369=1369 therefore D is correct