Question

What is the value of w ?
A) 7
B) 3.5
C) 7squareroot of 3
D) 14

Answer 1

We know that a triangle must add up to 180 degrees. One angle is given (30 degrees) we also know that it's a right triangle, so one angle must be 90 degrees.

30 + 90 = 120. Now, take 120 and subtract 180.

180 - 120 = w

Answer 2

60

Answer 3

Yup! :)

Answer 4

So, now that we have all three of our angles, and a point, do you know the formula to find the hypotenuse?

Answer 5

Asquared plus bsquared equals c square d

Answer 6

:)

Answer 7

I dont understand how that would give me w

Answer 8

SOHCAHTOA tells use we need to use Sine.

The two sides we are using are Opposite (7__/3) and Hypotenuse (w)

Write down the fraction for sin 30° = (7__/3)/w

w x (sin 30) = 7__/3
w = 7__/3(/) (sin 30)
w = 7/2
w = 3.5

Answer 9

Oh ok do you haveatime for one more?

Answer 10

Have time*

Answer 11

Sorry - but I have to go. try asking @Ashleyisakitty , she's taking trigonometry/Geometry.

Answer 12

Ok