Answer:

Step-by-step explanation:
I think the answer choices were supposed to be:

Pythagorean Theorem: a²+b²=c²
5²+b²=8²
25+b²=64
<em>Subtract 25 from both sides</em>
b²=39
<em>Square root both sides</em>
b=
Our answer is 
It has to be 30,40,50
Due to Pythagoras Theron it suggests that longer sides is a*2 and b*2 and 30 and 40 square is 2500
2500 square is 50 meaning it makes this statement true
All others are wrong
Answer:

Step-by-step explanation:


Finding the value of x°

Plug the values

Add the numbers

The value of x° is 70°
Hope I helped!
Best regards! :D
~
Answer:
2
Step-by-step explanation:
algebra and bisector means its half
The answer is in the image attached. I hope it is helpful.