Answer:
Step-by-step explanation:
if you can use negative numbers then you could use 21 and -15
so
adding them together is 21 + (-15) = 6
and then subtracting 21 - (-15) =
21 + 15 = 36
do you think that would work ? :/
Which equation am I looking at
Answer:
Right angles is 90° so 90°+30°=120°.A straight line is 180°. So you do 180°-120° which is 60. So A=60°
OH THANKS A LOT AND ITS 11