The surface are of the right cone is 176 sq.units. Option A) is the correct answer.
Step-by-step explanation:
step 1 :
Radius of the cone, r = 4
Height or length of the cone, h = 10
step 2 :
Total surface area of right cone = πrh + πr^2
= (π[tex]\times[/tex]4[tex]\times[/tex]10) + ( π[tex]\times[/tex]4^2)
= 40π + 16π
= 56 π = 56[tex]\times[/tex]3.14
= 176 sq.units
