I think you have to divide 275/5 and that will give you his speed for one hour.
Answer: 55 mph
It is a semicircle so you'd use this formula for the area:
πr² / 2
Then substitute 2 into r and solve (2 because it's the radius, 4 is the diameter)
You would use this formula for the perimeter:
(πd / 2) + d
or
πr + 2r
Then substitute 4 into d / 2 into r and solve.
Hope I helped :)
Divide 225 in to 5 the answer is 45 yards
Volume of cuboid=abc
Volume of prism :-
- Area of base×Height
- ab ×c
- abc
Same volume i.e 39 units²
If a,b,c=a,b,c