Triangles A and B are congruent. Find the perimeter of triangle A. Give your answer to 1 dp. 11cm A 19cm B Not drawn accurately.

P ≈ 45.51

Step-by-step explanation:

19cm is the hypotenuse (C)

11cm is the opposite (A)

 adjacent (B) missing

formula a² + b² = c²

So we need to find b which is b²= c² - a²

b² = (19)² - (11)² = 240

b  = square root of 240

b = 15.5

P = a+b+a2+b2

P ≈ 45.51

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step-by-step explanation:

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