Answer:
Step-by-step explanation:
(1+√3)(2-√3)=1(2-√3)+√3(2-√3)
=2-√3+2√3-3
=-1+√3
Answer:
Step-by-step explanation:
Errrr....this is kind of big brain for me. also i'm new here. hope somebody else can answer you.
We use sine here. Sin (45) = opposite/hypotenuse = 12/b
Sin (45) = sqrt (2)/2
So, sqrt(2)/2 = 12/b
Cross multiply:
24 = sqrt(2) * b
Divide both sides by sqrt(2):
b = 24/sqrt(2) = 12 * sqrt(2).
A vertical angle includes each of the pairs of opposite angles made by two intersecting lines, so ∠EKF and ∠HKI is the answer.
