Ong Shi Ting's answer to Alexa Chow's Secondary 4 A Maths question.
Why is it 3.13? Can you explain?
If I want use the arc length of circle, PQ will be 9.826
If I want use the arc length of circle, PQ will be 9.826
If you want to use s = r (titer)
You need to change the degree 56.3 to radian first
180 degree is 1 rad
56.3 degree is 1/180*56.3 = 0. 313.
S=10 * 0.313= 3.13
You need to change the degree 56.3 to radian first
180 degree is 1 rad
56.3 degree is 1/180*56.3 = 0. 313.
S=10 * 0.313= 3.13
Both methods degree or radian gives you the same answer.
I'm using this method
56.3/180 x pie = 0.9826 rad
Is it correct?
56.3/180 x pie = 0.9826 rad
Is it correct?
360 Tutoring Program