Question

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Answer 1

Use tan 30 , it would be,
tan 30 = x/7 (perpendicular/base)
so 1/sqrt3 = x/7
i.e. x=7/ sqrt3

Answer 2

x = 4.041?

Answer 3

Ya.. it's completely fine...

Answer 4

also i need help with this
Find the exact value of y.

Answer 5

y = 8.08?

Answer 6

Now for this , you can use any of sin30 or cos 30 , both values u know...

Answer 7

7cos30?

Answer 8

No.....It needs to be 7/cos 30 because
Check from the triangle, cos 30 = 7/y (base/hyp)

Answer 9

oh ok

Answer 10

Thank you ... my pleasure...