Question

Use the figure below to find the value of x and y.

x = 4, y = √12



x = 4, y = 8



x = 4√3, y = √6



x = 4√6, y = 8√3

Answer 1

Explanation:

As the given triangle is a right-angled triangle,

tan(30degree) = x / (4√3) = 1/√3

x = 4

sin(30degree) = x / y = 1/2

y = 8

Answer 2

Explanation:

from the pic

cos(30deg) = 4√3 / y = √3 / 2

y = 4 * 2 = 8

sin(30deg) = x/y = 1/2

x = y/2 = 8/2 = 4

ans is x = 4, y = 8