B
because the angles are supplementary meaning they add up to 180
Step-by-step explanation:
The formula for the lateral area of a right cone is :
LA = rs
Where
r is the radius of the base and s is the slant height of the cone
Equivalent expression,

or

Hence, this is the required solution.
Answer:
Here you go
Step-by-step explanation:
A. 4070
B. 310
c. 410
D. 307.0
120 cm
10 cm
Subtract 23
x = -45
The solution is x = -45