I think the value of x is 20°.
V = pi x R^2 x height
V= pi x 6^2 x 12
V= 432 pi (m^3)
Two complementary angles: α,β
Definition of complementary angles:
α+β=90
β=4α
4α+α=90
5α=90 /:5
α=18
Measure of smallest angle is 18 degrees.
Answer:
Step-by-step explanation:
I assume that the last question should read "cosE"
Answer:
-7
Step-by-step explanation: