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3 years ago

Based on the figure, which pair of triangles is congruent by the Side Angle Side Postulate?

Mathematics

2 answers:

Ainat [17]3 years ago

7 0

Triangle ABD and Triangle ECD
''''''''''''''''Remember: Vertical angles are congruent '''''''''''''''''''''
So angle ADB and angle CDE are congruent
We know that sides BD and DC are congruent
also sides AD and DE are congruent

:)

Lapatulllka [165]3 years ago

5 0

Answer: Triangle ABC and Triangle ECD

Step-by-step explanation:

In Triangle ABC and Triangle ECD

BD=CD and AD=ED [given in the figure]

∠BDA=∠EDC [Vertically opposite angles are equal]

⇒ΔABC ≅ ΔECD [By SAS postulate]

SAS postulate or Side Angle Side postulate tells that if two sides and their included angle of one triangle are congruent to two sides and the included angle of another triangle, then the two triangles are congruent.

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10 POINTS need help asap. Last option is D

vagabundo [1.1K]

Answer:

Point C

Step-by-step explanation:

Try to picture what the 90° rotation would look like and then just past that is point C at 120°.

The point also needs to be the same distance from the center as point P is.

6 0

3 years ago

Symbolize and Solve Equations

NNADVOKAT [17]

x = 5.43 + .83m

5.43 + .83 * 5 = 5.43 + 4.15 = $9.58

5 0

2 years ago

(A/N If you don't know please don't answer. I need this for extra credit)

jolli1 [7]

Answer:

112

Step-by-step explanation:

This is a cyclic quadralterial. A cyclic quadralterial is a quadralterial that is inscribed in a circle where all the point or vertices of the quadralterial touches the circle circumference. Opposite angles in a cyclic quadralterial are supplementary.

Angle R and Angle QPS or P is supplementary since they are opposite angle.

Substitute 68 for R

$68 + qps = 180$

$qps = 112$

So the answer is 112

3 0

3 years ago

I am confused about ii) help please

Jobisdone [24]

Step-by-step explanation:

i)=

m=2/3

x=-3

y = 5

now

y=mx+c

or, 5 = 2/3× -3 + c

or, 5 = -2+c

c =7

now,

y= mx + c

or, y = 2/3×x+7

or, y = 2x/3+7

or, 3y = 2x+21

so, 3y-2x=21

equation would be 3y-2x=21.

now

ii)=

if slope of 3y-2x=21 and 2x-3y = 0 are same, they are parallel.

2x-3y = 0

2x = 3y

lets suppose x is 9

now

2x=3y

2×9 = 3y

or, 18 = 3y

so, y = 6

one coordinate would be (9,6) now

lets again suppose x is 3

2x=3y

2×3 = 3y

or, 6 = 3y

so, y = 2

another coordinate is (3,2)

now lets find slope

x1=9,y1=6

x2=3,y2=2

slope = (y2-y1)/(x2-x1)

= (2-6)/(3-9)

= -4/-6

= 2/3

Since, slope of 3y-2x=21 and 2x-3y has same slope 2/3, they are parallel.

6 0

3 years ago

What is the greatest value 20g of flour 3 for 3.50 or 40g of flour for 2 for 9£ which is better for money

jenyasd209 [6]

Answer:

It is better to buy 20 g of flour 3 for 3.50

Step-by-step explanation:

It is given that 20g of 3 for 3.50

It means 3 packets of 20 g is 3*20 =60

So, 60g is for 3.50

So, 1 g = $\frac{3.5}{60}$ =0.05833 per gram.

Now, let's find unit rate for 40 g of 2 for 9.

2 packets of 40 gram = 2* 40 =80 grams

So, 80 grams costs 9

So, 1 gram = $\frac{9}{80}$ =0.1125

So, it is better to buy 20 g of flour 3 for 3.50

4 0

3 years ago