Answer: No, it is not a right triangle.
Explanation:
9^2 + 7^2 (?) 12^2
81 + 49 (?) 144
130 = 144
Since 12^2 = 144, and the square root of 130 is 11.4^2, it is not a right triangle.
415 is estimated to 420 because 415 surpassed 410 already or you around the one up from the tens place.
I am pretty sure the answer is D. Record your answers and see the winning choice.
Answer:
a
Step-by-step explanation:
Between 5a and 9a
5a =5xa
9a =9xa
The common here is a