Answer:
c = 7

Explanation:
Using the sine ratio in the left right triangle and the exact value
sin45° =
, then
sin45° =
=
=
( cross- multiply )
2a = 14 ( divide both sides by 2 )
a = 7
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Using the tangent ratio in the right triangle and the exact value
tan30° =
, then
tan30° =
=
=
=
( cross- multiply )
c = 7

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