Answer:
Step-by-step explanation:
<u>Every</u><u> </u><u>triangles</u><u> </u><u>are</u><u> </u><u>congruent</u>
according to Pythagoras theorem
a²+b²=c²
3²+b²=4²
b²=4²-3²
b=√4²-3²
b=√16-9
b=√7
a^2 - 5bc - 1
a = 7
b = 3
c = 2
7^2 - 5*3*2 - 1
49 - 30 - 1
18
15
(4,1)
