Use a ruler for this problem. Take a picture of the measurement & then I could help you.
The answer will be negative because as you can see the number with the biggest number is the negative one. anyway your answer is negative 4 ( -4)
Remark
In a 30-60-90 triangle the opposite side and the hypotenuse of a 30 degree angle are in the ratio of 1:2. That means if the opposite side to a 30 degree angle is 5, then the hypotenuse should be 10.
Step one
Solve for y
ratio of 30 degree angle = opposite / hypotenuse
Givens
opposite = 5
hypotenuse = x
Ratio of 30 degree angle in a right triangle = 1/2
Sub and Solve
1/2 = opposite / hypotenuse
1/2 = 5 / hypotenuse Multiply both sides by hypotenuse
0.5 * hypotenuse = 5 Divide by 0.5
hypotenuse = 5/0.5
hypotenuse = 10
Step 2
Find x
Givens
hypotenuse = 10
In a 30 - 60 - 90 triangle the ratio of the adjacent side to the hypotenuse = sqrt(3) / 2
Sub and solve
sqrt(3)/2 = adjacent / hypotenuse
sqrt(3) /2 = adjacent / 10 Multiply both sides by 10
10 * sqrt(3) / 2 = adjacent Cancel
5 * sqrt(3)
Answer: 6 cm^2
Step-by-step explanation:
The answer is going to be 4. Hope that helped.