Question

B
А
E
Diagram 1
Diagram 2
The Diagram 1 shows a barn and Diagram 2 shows the cross-section of its end.
A farmer needs to order a new roof for his barn. The roof is represented by ABC, the arc of a circle
of radius r, center O. ACDE is a rectangle.
a.
Given that AC=8m and BF=2m
1.
Write down an expression in terms of r, for the length OF​

Answer 1

Answer:

You should attach an image of diagram also so that we could understand the question properly friend.