Question

If BG = 90 and AF = 35, find the length of DE.

Answer 1

Someone PLEASE help..

Answer 2

Is A the center

Answer 3

If A is the center, then AE equals 45 since it is the radius, or half of DE. Use a^2 + b^2 = c^2. with a = AF b=DE and c=AE so 45^2 - 35^2 = 800 so DE is the square root of 800

Answer 4

Here is a quick sketch and two follow up questions.

Answer 5

Diameter is 90 so radius is 45, thus AF=45-35=10
Now draw Radius AD So \[DF=\sqrt{AD ^{2}-AF ^{2}}\]

Answer 6

Now DE=2DF