-8 - 7 - 16 - 14 + 2 = -43
Subtract 43 from 180 as the sum of a triangle adds up to 180 degrees.
180 - 43 = 137
:)
understanding the problem
<u>Answer:</u>
The lateral area of volcano is 323.361 km square
<u>Explanation</u>:
Given the diameter of the volcano (cone) = 20 km
Then, radius (r) = 20/2 = 10km
Height of the volcano (h) = 2.46 km
Given, the volcano has a distinctive cone shape
Then, lateral area of cone is given by the formula, 
Substituting the values,



= 323.361 km square
Therefore, the lateral area of cone is 323.361 km square