Which math sentence can be used to determine if this triangle is a right triangle? 20+21 = 2920 squared +21 squared equals 29 squared 29+21 = 29 squared +21 squared equals 20 squared

Step-by-step explanation:

The two smaller line lengths are squared separately and added. The square of the third line is noted. If squares of the two small ones equal the square of the largest one, you are working with a right angle triangle.

The one that puts into a formula what is stated above is B. D is close, but the longest line must be by itself.

8 2/3 is the answer

step-by-step explanation: just use a calculator

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .