I can help. The answer is 18x12=216!! So your answer is 12!
Answer:
Obtuse Scalene Triangle
Give me Brainliest if I'm correct , please ! :)
Answer: 
Step-by-step explanation:
The formula for the lateral area of a cone
is:

Where:
is the radius of the circular base of the cone
As we know its diameter
, its radius is 
is the height of the cone

This is the lateral area of the volcano with the shape of a cone