Find the measure of <AEB for m<BEC = 67°​

option a

hope helps you

have a nice day

We are given

a thermal conductivity rate of 0.03 watts (W) per meter(m) per degree celsius

so, thermal conductivity is

while we want the batting thermal conductivity in  w/cm•c

The only difference is that metre and cm

so, we need to change metre into centimeter

we know

1m =100cm

so, we can write thermal conductivity as

we can replace 1m as 100cm

now, we can simplify it

so, thermal conductivity is

................Answer