Ausmumof3 Posted August 31, 2018 Share Posted August 31, 2018 Review 6 workbook pg 85. shows 2 angles at a point one is reflex the other is obtuse. Angle a is 60pc of angle b. I think we are doing something wrong as we get the wrong answer but I can’t work out what? Anyone care to share how you solved it? Quote Link to comment Share on other sites More sharing options...
Ausmumof3 Posted August 31, 2018 Author Share Posted August 31, 2018 ETA you need to find angle b Quote Link to comment Share on other sites More sharing options...
Arcadia Posted August 31, 2018 Share Posted August 31, 2018 Angle a is 135 degrees Angle b is 225 degrees angle at a point adds up to 360 degrees. A + B = 360 A is 60% of B A = 0.6B 0.6B + B = 360 1.6B = 360 B = 225 2 Quote Link to comment Share on other sites More sharing options...
Ausmumof3 Posted September 4, 2018 Author Share Posted September 4, 2018 On 8/31/2018 at 2:30 PM, Arcadia said: Angle a is 135 degrees Angle b is 225 degrees angle at a point adds up to 360 degrees. A + B = 360 A is 60% of B A = 0.6B 0.6B + B = 360 1.6B = 360 B = 225 Thanks! I just realised our method was fine but we had 360/8 as 40 not 45! Sometimes it’s the simplest things. we used bar diagram method though. 1 Quote Link to comment Share on other sites More sharing options...
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