27 is 90% of 30. Hope that helps.
Answer:



Step-by-step explanation:
I will solve this question with the attached triangle
From the attachment, we have:



Required
Solve the triangle
First, we calculate
using sine law:

This gives:


Cross multiply


Divide both sides by 29

Take arcsin of both sides

Next, calculate
using:
--- angles in a triangle

Collect like terms


Next, calculate BC using sine laws

This gives:


Make BC the subject


Answer:
24x^2
Step-by-step explanation:
<span>x : y is equal to 12 : 8. These can be reduced or cancelled down to 3 : 2 in the same proportions. Therefore, when y is 12, you have to multiply the smallest value y can be by 6, and must do the same to the smallest x value to retain the proportions. x = 18 when y = 12.</span>
The area of triangle BXA is 15*sqrt(2).