Answer:
2.3
Step-by-step explanation:
4²+b²=4.6²
16+b²=21.16
-16 -16
b²= 5.16
b=√5.16
b= 2.3
2.27 in ~2.3 in to the nearest tenth
It is a right triangle ....so yo can use pythagorean theorem
4^2 + b^2 = 4.6^2
b = 2.27
