11:30 and 1:00 assuming that it is 11:30 AM to 1:00 PM and not 11:30 AM to 1:00 AM
11:30 to 1:00 cannot be directly counted the hours go like this 1,2,3,4,5,6,7,8,9,10,11,12=AM then after 12AM then 1,2,3,4,5,6,7,8,9,10,11,2=PM
60 minutes in 1 hour so 11:30=11 hours and 30 mins how far to 12 AM? 12 AM=12 hours=11 hours and 60 minutes 11 hours and 60 minutes-(11 hours and 30 mins)=30 minutes
then from 12 AM to 1 PM=1 hour so time total difference is 1 hour and 30 minutes
his class lasts for 1 hour and 30 minutes because all you have to do is count how long the hours are then subtract 30 minutes and there you go 1 hour and 30 minutes.
Exterior angle C is the sum of interior angles A and B. If angle A is 70, then angle B is 120-70 = 50. Angle C is the supplement of its exterior angle, so is 180-120 = 60.
The smallest angle is B, so the opposite side, AC, is the shortest side.
The area of the rectangle is length times width, that is A = L*W The problem requires the width so W = A/L Given that A = 437 sq. cm and L = 19 cm, therefore W = 437/19 = 23 cm
