Urgent given triangle E F G, select the graph of image E' F' G' and confirm that it preserves length and angle measuresg

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

answer:

c. the third graph

answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation:

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.