Answer:
x=15
Step-by-step explanation:
9²+12²=c²
81+144=c²
225=c²
√225=√c
15=c
<-- Real Solution
<-- Complex Solutions
Answer:The length of one side would be 11
Answer:angle x=5
Sum of triangles =180 ,x+90+45+40=180, x+175=180 ,x =5