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4 years ago

I really need help ASAP Answer choices: 101,19,50,60,79 A= B= C= D= E=

Mathematics

1 answer:

FromTheMoon [43]4 years ago

6 0

Answer:

Step-by-step explanation:

1) The sum of the angles on a straight line is 180 degrees. This means that

51 + b + 110 = 180

161 + b = 180

b = 180 - 161 = 19 degrees

2) Angle a = 60 degrees. This is so because they are vertically opposite angles.

3)The sum of angles in a triangle is 180 degrees. Therefore

angle a + angle b + angle c

60 + 19 + c = 180

79 + c = 180

c = 180 - 79 = 101 degrees

4) d + c = 180(sum of the angles on a straight line is 180 degrees). Therefore

d + 101 = 180

d = 180 - 101 = 79 degrees.

5) e + 51 + b + a = 180( sum of the angles in a triangle is 180 degrees). Therefore

e + 51 + 60 + 19 = 180

e + 130 = 180

e = 180 - 130 = 50 degrees

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Answer:

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Step-by-step explanation:

Given that the ratio of the length to width in a full-size cello is approximately 8 to 3.

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