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son4ous [18]
2 years ago
12

Help me please!!! 7. What are the measures of ∠a, ∠b, and ∠c?

Mathematics
2 answers:
Sholpan [36]2 years ago
7 0

Answer:

a = 65°

(what's missing for a half turn)

c = 30°

(bc same angle as upper left)

b = 85°

(bc a+b+c must be 180° in sum, as always in triangles)

please brainliest

guajiro [1.7K]2 years ago
7 0

Answer:

a = 45

b = 105

c = 30 .

Step-by-step explanation:

a +  135 = 180  {Linear pair}

         a = 180 - 135

a = 45

d = 30    {Vertically opposite angles}

WA // YZ

c = d   { Alternative interior anlges}

c = 30

a +  b+ c = 180  {Angle sum property of triangle}

45 + b + 30 = 180

       b + 75 = 180

b = 180 -75

b = 105

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3 years ago
Points P, Q, and S are collinear.<br><br> What is m∠SQR?
RideAnS [48]

Answer:

m∠SQR = 74°

Step-by-step explanation:

Points P, Q and R are collinear.

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Since linear pair of angles are supplementary angles.

m∠PQR + m∠RQS = 180°

By substituting the measures of the given angles,

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m = \frac{175}{5}

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Since, m∠SQR = (2m + 4)°

                        = (2×35) + 4

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Therefore, m∠SQR = 74° is the answer.

8 0
3 years ago
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3 years ago
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