Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
Secondary 1 | Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
help
Date Posted: 3 years ago
Views: 444
r = 2.8 km
1 circle circumference
= 2πr
= ( ²²⁄₇ ) × 2 × 2.8 km
= 17.6 km
time = distance ÷ speed
= 17.6 km ÷ 13.2
= 1 ⅓ h
= 1 h 20 min
6.50+1.20 = 8.10 am (Ans)
1 circle circumference
= 2πr
= ( ²²⁄₇ ) × 2 × 2.8 km
= 17.6 km
time = distance ÷ speed
= 17.6 km ÷ 13.2
= 1 ⅓ h
= 1 h 20 min
6.50+1.20 = 8.10 am (Ans)
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Try
Date Posted:
3 years ago
yes correct ! thank uu
360 Tutoring Program