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Vika [28.1K]
3 years ago
5

In the figure below, \overline{AC} AC start overline, A, C, end overline and \overline{BE} BE start overline, B, E, end overline

are diameters of circle PPP. What is the arc measure of \stackrel{\Huge{\frown}}{DBE} DBE ⌢ D, B, E, start superscript, \frown, end superscript in degrees?

Mathematics
1 answer:
mars1129 [50]3 years ago
8 0

Answer:

arc\ DBE=206^o

Step-by-step explanation:

The picture of the question in the attached figure

<u><em>The question is</em></u>

Find the measure of arc DBE          

step 1

Find the value of k

we know that

m\angle EPC=90^o ----> by quarter of circle

m\angle EPC=(33k-9)^o

so

(33k-9)^o=90^o

solve for k

33k=90+9\\33k=99\\k=3

step 2

Find the measure of angle DPC

we know that

m\angle DPC=(20k+4)^o

substitute the value of k

m\angle DPC=(20(3)+4)=64^o

step 3

Find the measure of angle BPD

we know that

m\angle BPD+m\angle DPC=90^o ---> by complementary angles

substitute the given value

m\angle BPD+64^o=90^o

m\angle BPD=90^o-64^o=26^o

step 4

Find the measure of arc DBE

we know that

arc\ DBE=arc\ DB+arc\ BAE

arc\ DB=m\angle BPD=26^o ----> by central angle

arc\ BAE=180^o ---> because a diameter divide the circle into two equal parts (BE is a diameter)

substitute

arc\ DBE=26^o+180^o=206^o

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