Solving a right triangle ‼️ can someone me find a, a and c❓ (round to the nearest tenth)

see explanation

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Subtract the sum of the given angles from 180 for A

A = 180° - (90 + 48)° = 180° - 138° = 42°

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tan48° = =

Multiply both sides by a

a × tan48° = 18 ( divide both sides by tan48° )

a = ≈ 16.2 ( to the nearest tenth )

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sin48° = =

Multiply both sides by c

c × sin48° = 18 ( divide both sides by sin48° )

c = ≈ 24.2 ( to the nearest tenth )

12*c

step-by-step explanation:

i believe the answer is the polygon, heptagon.