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vichka [17]
3 years ago
7

PLEASE HELP!! AOC and BOD are diameters of a circle, centre O. Prove that triangle ABD and triangle DCA are congruent by RHS.

Mathematics
2 answers:
goldfiish [28.3K]3 years ago
4 0
Give the person their brainliest
Alona [7]3 years ago
4 0

Answer

3.7/5

6

Siddharta7

Genius

2.1K answers

230.1K people helped

Step-by-step explanation:

Given,

BAD and ADC are right angles[angles in semicircle is 90]

AD is common to both triangles.

=> ∠BAD = ∠CDA[angles in semicircle is 90°]

=> ∠ABO = ∠DCA[angles in same segment are equal]

∴ ΔABD and ΔDCA are congruent. ----- ASA

(or)

BD = CA[diameters of the circle]

=> ∠BAD = ∠CDA[angles in semicircle is 90°]

AD is common to both triangles.

ΔABD and ΔDCA are congruent triangles. ----- RHS

(or)

BD = CA[diameter of circle]

AD is common.

=> ∠ADB = ∠CAD[base angles of an isosceles triangle are equal]

∴ ΔABD and ΔDCA are congruent triangles. ------ SAS

Hope it helps!

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Answer: 31 & 42

<u>Step-by-step explanation:</u>

1st #: x

2nd #: x + 11

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 x    +  x + 11 =  73

         2x + 11 = 73

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2nd #: x + 11   = 31 + 11   = 42

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3 years ago
Math / graphing / Help please
elena-s [515]
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y = -3/4 (x - 6) + 2
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7 0
3 years ago
Look at pic plz help
jasenka [17]

Answer:

Mochi

Step-by-step explanation:

Mochi

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on the 3rd week Kappa weighed 11

and 2nd week Kappa weighed 5

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8 0
3 years ago
Henry has a fenced yard in the shape of a rectangle with a perimeter that measures 242 feet. If the width of the yard measures 5
neonofarm [45]

Answer: Length = 70 feet

Concept:

Here, we need to know how to find the perimeter of a rectangle.

Perimeter (rectangle) = 2 (l + w)

l = length

w = width

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<u>Given information</u>

l = l

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<u>Given expression</u>

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<u>Substitute values into the expression</u>

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<u>Divide 2 on both sides</u>

242 / 2 = 2 (l + 51) / 2

121 = l + 51

<u>Subtract 51 on both sides</u>

121 - 51 = l + 51 - 51

\boxed{l=70}

Hope this helps!! :)

Please let me know if you have any questions

4 0
3 years ago
Write the equation below in slope-intercept form. <br><br> x - y = 2
Arte-miy333 [17]

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the slope intercept form is

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3 0
3 years ago
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