Answer:

Step-by-step explanation:
The total surface area of a cone is given by :

Put r = 2r and l = 2l in the above formula

Hence, the total surface area of the cone is
.
The answer should be the 1st one.
Just use the quadratic formula and plug in the necessary numbers when requested and work from there.
Answer:
251.4cm² is the area of the cone-shaped vase.
The answer is D. 5^-2 times 5^4.
Answer:
just add 76+44=120
Step-by-step explanation: