Since 20 is a factor of 40, the least common denominator of 3/20 and 9/40 is 40.
Answer:
408.46cm^2
Step-by-step explanation:
Given data
Height= 13cm
Diameter= 10cm
Radius= D/2= 10/2= 5cm
The area of the curved surface will be = 2πr × h = 2πrh
substitute
Area of the curved surface = 2πrh= 2*3.142*5*13
Area of the curved surface = 2πrh= 408.46cm^2
Hence the area of the curve surface is 408.46cm^2
Answer:

Step-by-step explanation:

Step 1: Divide the numbers

Step 2: Simplify

Step 3: Simplify

Therefore, the simplified answer is 
A + ar = b + r
a(1 + r) = b + r
a = (b + r) / (1 + r)
Its c
Answer:
545.662
Step-by-step explanation:
88.01
<u> x 6.2 </u>
17602
<u> 52806 </u>
545.662