Step-by-step explanation:
pythagoras theorem: c²=a²+b²
Where c= longest side of a right angle triangle
AB= 6+r = c
AD= 12 =a
CD= r =b
(6+r)² = 12²+ r²
36+12r+r² =144 +r²
12r+r²-r²=144-36
12r=108
r= 108/12
r=9
I have no idea but I googled and I got 0.6 I hope this helps!
Answer:
She didn't make a mistake
Step-by-step explanation:
Answer:
b = 14
Step-by-step explanation:
9 + (5-b) = 0
9 + 5 - b = 0
14 - b = 0
+ b = + b
14= b
