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givi [52]
4 years ago
10

Plsss help me I would be happy if do

Mathematics
2 answers:
Andreyy894 years ago
7 0

Answer:

Perimeter = 40.1 cm

Step-by-step 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

White raven [17]4 years ago
5 0

Answer:

40.08

Step-by-step explanation:

...............

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<span>see attached graphic</span>
<span>
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3 years ago
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