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Svetlanka [38]
3 years ago
6

Complete the statement by typing the letter of the angle. m∠ =54º

Mathematics
2 answers:
satela [25.4K]3 years ago
5 0

Answer:

B is the answer.

Step-by-step explanation:

Got it right on Ed.

tekilochka [14]3 years ago
3 0

Answer:

x = 16

∠A = 39

∠B = 54

∠C = 87

Step-by-step explanation:

Make a equation of all of the angles added together is equal to 180 since the angles of a triangle added together is 180

(4x-10)+(2x+7)+(7x-25)=180

combine like terms

4x+2x+7x-10+7-25 = 180

13x-28=180

solve for x

13x=208

x = 16

plug in x to find the measure of the angle

∠A = 2(16) + 7 = 39

∠B = 4(16) - 10 = 54

∠C = 7(16) - 25 = 87

Add them together to double check your answer

39 + 54 + 87 = 180

hope this helps

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