Answer:
63 inch²
Step-by-step explanation:
area of triangle: (12 x 12) / 2 = 72
area of square cut out: 3 x 3 = 9
area left: 72 - 9 = 63
Answer:
Step-by-step explanation:
You use the Law of Cosines when you know all three sides and want to find the angles of a triangle.
For example, if you want to find ∠A, you use the formula
1. ∠ A
2. ∠B
3. ∠C
The solution of the equations is A) (-2,-4)
Answer:
=3
=−3
Step-by-step explanation: