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alexandr402 [8]
3 years ago
7

Which of the following constructions are crucial to draw inscribed circles on a given equilateral triangle

Mathematics
2 answers:
Sedbober [7]3 years ago
8 0

Answer: construct perpendicular lines and construct angle bisectors

Step-by-step explanation:

Fiesta28 [93]3 years ago
4 0
To draw a circle inscribed on a given triangle we usually follow the procedure given by:
construct a perpendicular line
construct another perpendicular line
where they cross is the center of the inscribed triangle. 
Place a compass at the center point and adjust it's length to one of the angles and and draw the circle.
Thus from the above we say the answer is:
Construct perpendicular
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A conjecture and the flowchart proof used to prove the conjecture are shown.
amm1812

Answer:

∠1 + ∠2 + ∠3 = 180°

Step-by-step explanation:

Given :  AB II XC

To Show : ∠1 + ∠2 + ∠3 = 180°

Proof: Here, given that AB is parallel to the line XC

⇒  ∠4  =  ∠2  (Pair of Alternate angles as AB II XC)  .........  (1)

and ∠5  =  ∠3 (Pair of Alternate angles as AB II XC) ...........  (2)

Now, ∠1 + ∠4 + ∠5  = 180° ( Straight Angle)

But, from above (1) and (2)

∠1 + ∠2 + ∠3   =   180°  ( as ∠4  =  ∠2,  ∠5  =  ∠3)

Hence, ∠1 + ∠2 + ∠3   =   180°

Hence Proved.

7 0
3 years ago
Fraction - Subtrction : 15 5/11 - 7 3/12
GrogVix [38]

Answer:

= 8 \frac{27}{132}  = 8\frac{9}{44}\\

Step-by-step explanation:

15 \frac{5}{11}  - 7 \frac{3}{12}  \\  \frac{170}{11}  -  \frac{87}{12}  \\  \frac{2040 - 957}{132}  \\  =  \frac{1083}{132}  \\  = 8 \frac{27}{132}

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<em>brainliest</em><em> </em><em>appreciated</em>

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Brilliant_brown [7]

Answer:

Look in Step by Step Explanation

Step-by-step explanation:

3)SOHCAHTOA

tan=opposite/adjacent

tan(20)=x/83

83tan(20)=x

x=30.209

2) SOHCAHTOA

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Sin=opposite/hypotonouse

sin(25)=30/x

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x=70.986

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3 years ago
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Answer:

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Step-by-step explanation:

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