Given: ∠bcd ≅ ∠edc and ∠bdc ≅ ∠ecd prove: δ bcd ≅ δ edc

 The proof is done below using ASA congruence postulate.

Step-by-step explanation:  We are given that in the figure shown :

∠BCD ≅ ∠EDC and ∠BDC ≅ ∠ECD.

We are to prove that :

Δ BCD ≅ Δ EDC.

From the figure, we can see that the side CD is the common side of both the triangles, ΔBCD and ΔECD.

In triangle BCD and ECD, we have

∠BCD ≅ ∠EDC,

∠BDC ≅ ∠ECD

and CD is the common side.

That is, two angles and the side between them of ΔBCD are congruent to the corresponding angles and the side between them of ΔECD.

Therefore, by ASA (Angle-side-Angle) postulate, we arrive at

Δ BCD ≅ Δ EDC.

Hence proved.

yeet

step-by-step explanation:

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

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