Answer:
a = 8
Step-by-step explanation:
Pythagoras
hypotenuse² = Attitude ² + Base²
10² = a² + 6²
100 = a² +36
change side ; a² = 100-36
a² = 64
a = √64
a = 8 (Positive number only. not minus number)
so a = 8
hope it helps ☺️
