Answer:
A
Step-by-step explanation:
The area is 448.5
(13 × 29) + (11 × 13)1/2
divide 9 by 10. (the numerator and denominator) = 9 / 10 = 0.9
add the 0.9 to the 3 so, 3 + 0.9 = 3.9
answer: 3.9
I believe the answer is A. 20, 30, 40 is NOT a pythagorean triple.
