Hi Walker
d=a+b+c
Flip
a+b+c=d
Add -a to both sides
a+b+c-a=d-a
b+c=-a+d
Now add -c to both sides
b+c-c=-a+d-c
b= -a-c+d
I hope that's help:0
Using pythagorean theorem:
Answer:
x = ±2sqrt(15)
Step-by-step explanation:
x^2 = 60
Take the square root of each side
sqrt(x^2) = ±sqrt(60)
x = ±sqrt(60)
x = ±sqrt(4 *15)
idk