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eimsori [14]
3 years ago
11

Given: m

Mathematics
2 answers:
marissa [1.9K]3 years ago
7 0

Answer:

m∠LTE = 110

Step-by-step explanation:

1. add up all of the arcs.

2x+3x+4x-8+x-12

2. all of the arcs equal 360

2x+3x+4x-8+x-12=360

3. Find x

10x-20=360, x=38

4. angle LTE is equal to half of the sum of the intercepted arcs.

0.5(arc LE +GF)

5. plug in LE +GF with x

.5(76+144)

professor190 [17]3 years ago
7 0

Answer:

m∠LTE = 110°

Step-by-step explanation:

We know that sum of all arcs of a circle is 360°

Therefore m(arcAL)+m(arcLG)+m(arcGF)+(mFE)=360

Now we put the values of each arc

(2x)+(3x)+(4x-8)+(x-12)=2x+3x+4x+x-8-12=10x-20=360

10x = 360 + 20

10x = 380

x=\frac{380}{10}

x = 38

Now from the theorem of intersecting chords in a circle

Measure of ∠LTE = \frac{1}{2}[m(arcEL)+m(arcGF)]

m(arc EL) = 2x = 2×38 = 76°

m(arc GF) = (4x - 8) = (4×38 - 8) = (152 - 8) = 144°

Now we can get the measure of ∠LTE

m∠LTE = \frac{1}{2}(76 + 144)=\frac{220}{2}=110

Therefore m∠LTE = 110° is the answer.

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The answer is:  " 270 minutes " . 
__________________________________________________________
        →  There are "270 minutes" in "4 hours and 30 minutes" .
__________________________________________________________
Explanation:
__________________________________________________________
Method 1):
__________________________________________________________
  Note:  60 minutes = 1 hour (exactly); 

30 minutes =   ?   hr ? ; 

→  (30 minutes) * (1 hr/ 60 minutes) ;

=
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→   4.5 hours  =   ?  minutes ; 

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→  The answer is:  " 270 minutes ".
___________________________________________________________
Method 2)
 
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    "4 hours and 30 minutes"  = <u>  ?  </u> minutes " . 
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      →  There are  "270 minutes"  in  "4 hours and 30 minutes" .
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The answer is:  
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