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2 years ago

Plssss help v easyyyy

Mathematics

2 answers:

Ede4ka [16]2 years ago

7 0

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

Nikolay [14]2 years ago

6 0

Answer:

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

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

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