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stuck with question (1 Viewer)

Thread starter Exp
Start date Mar 22, 2018

E

Exp

Member

#1

This was from a Syd Grammar trial: https://imgur.com/v2BEDHL ..don't know where to start.

HeroWise

Active Member

#2

Its 140 C because the angle at the centre of the circle is double the angle at the circumference standing in the same arc

Last edited: Mar 22, 2018

E

Exp

Member

#3

if that's the case, I think you mean 145 degrees (B)
thanks!

HeroWise

Active Member

#4

Yeah mb

360-70= 290/2 = 145

R

Roy G Biv

Member

#5

That's a very common question/trick

Angle at the centre is twice angle at the circumference - for both sides of the angle at the centre! If that makes sense.

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