Question

Plssss help v easyyyy

Answer 1

Answer:60

Step-by-step explanation:

Pythagorean's theorem gives us 100^2-80^2=b^2

Simplifying this we get:

10000-6400=b^2

3600=b^2

b=60

Answer 2

Answer:

60

Step-by-step explanation:

we know by Pythagoras theorem that

$a^2+b^2=c^2$

with c the hypotenuse

so in our triangle we have

$a=80\\\\b=b\\\\c=100\\\\\\\\(80)^2+b^2=(100)^2\\\\b^2=(100)^2-(80)^2\\\\b^2=(100-80)(100+80)\\\\b^2=20(180)\\\\b^2=3600\\\\b^2=60^2\\\\b=60$