Karen drew a triangle with side length 3 centimeters,4 centimeters, and 5 centimeters. what is the perimeter of the triangle

If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2