Answer:
3r
Step-by-step explanation:
3+r
sense there is no other number to muliply 3 with, then you combine them together and get "3r"
Answer:
-5
Step-by-step explanation:
Answer:
The answer is Area=24
Step-by-step explanation:
You use the formula B*H/2=A
So 12*4=48/2=24
Hope this helps!
Answer:
144.2 cm
Step-by-step explanation:
Length of the iron rod is 7.4cm
Radius is 3.1m
Therefore the surface area can be calculated as follows
= 2πrl
= 2×3.142×3.1×7.4
= 144.2 I'm
Hence the surface area is 144.2cm