<h2>ABC and DEF</h2>
Their 3 angles are equal (64,26,90)
Hope this will help...
Please mark as brainliest
a. Use the inclusion/exclusion principle.

b. By definition of conditional probability,

5*3^0 = 5,
5*3^1 = 15,
5*3^2 = 45,
5*3^3 = 135,
5*3^4 = 405
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I think the answer is D but i could be wrong