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Plsss help me I would be happy if do

Plsss help me I would be happy if do-example-1

2 Answers

1 vote

Answer:

40.08

Explanation:

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Plsss help me I would be happy if do-example-1
User Yuval Pruss
by
4.7k points
4 votes

Answer:

Perimeter = 40.1 cm

Explanation:

Finding CD for ΔCBD using Pythagorean theorem

c² = a² + b²

c² = 4.1² + 8.4²

c² = 16.81 + 70.56

c² = 87.37

Taking sqrt on both sides

CD = 9.35 cm

Now Finding CA of ΔCBA by Pythagorean theorem

c² = a² + b²

c² = 12² + 8.4²

c² = 144 + 70.56

c² = 214.56 cm

Taking sqrt on both sides

CA = 14.65 cm

Now Perimeter = Sum of all sides

= 14.65 + 9.35 + 12 + 4.1

= 40.1 cm

User IronBlossom
by
4.5k points