The Triangle thats not unique is letter D
Jake wants to post a 600 gram parcel and an 800 gram parcel.
He posts them Second Class.
He pays with a £10 note.
How much change should he get?
Marked down 20% means it is selling for 80% of the original price ( 100% - 20% = 80%)
Multiply the original price by 80%
270 x 0.80 = $216.00
Yes LMN is a right triangle .
Angle a is 80, angle d is 100, angle c is 100
