3 and 1/2 can be rewritten as a fraction as 7/2.
7 can be written as 7/1.
When dividing by a fraction, simply multiply by the reciprocal.
7/2*1/7.
Then, cross multiply across the top.
7*1=7
2*7=14
So it's 7/14, which can be reduced to 1/2.
Since it's a right angle the sum of the two angles equals 90°
(8y-2)°+60°=90°
8y-2=90-60
8y-2=30
8y=30+2
8y=32
y=32/8
y=4
Lateral surface area is the sum of all sides of a 3D object EXCEPT it's top and bottom bases.