-6 is the answer that you want
Answer:
Step-by-step explanation:
We know that since angles in a triangle add up to 180º, the remaining angle must be 45º.
So the side with length must be equal to the side with length . That is:
Now, by Pythagoras:
Answer:
12
Step-by-step explanation:
3 ÷ 1/4
Copy dot flip
Keep the first number, change the divide to multiply and take the reciprocal of the 2nd number
3 * 4/1
12