Answer:
Step-by-step explanation:
Starting with ΔABC, draw the dilation image of the triangle with a center at the origin and a scale factor of two. Notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). Dilations involve multiplication! Dilation with scale factor 2, multiply by 2
Answer:

Step-by-step explanation:
<u>Step 1: Multiply
</u>


<u>Step 2: Combine
</u>


Answer: 
If you use a ruler and if it's more than 120° its not a right triangle it has to be 120°
If you convert the fractions to ___/20 then you will see. Here; 2/5 = 8/20. 1/4 = 5/20. I hope this helps.