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scoundrel [369]
2 years ago
11

How do you find the missing angle of a triangle when all other angles are there?

Mathematics
1 answer:
olya-2409 [2.1K]2 years ago
7 0
All angles in a triangle add up to 180 degrees. So, if you are missing an angle, add up the degrees of the angles present and subtract that from 180. That will be the value of the missing angle in degrees.
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What are the sizes of angles a, b, c and d? ​
Lilit [14]

Answer:

a = 26°

b = 48°

c = 26°

d = 106°

Step-by-step explanation:

c +  {154}^{o}  =  {180}^{o}  \\ c =  {180}^{o}  -  {154}^{o}  \\ c =  {26}^{o}

a = c (Alternate angles)

a =  {26}^{o}

b =  {48}^{o}

Corresponding angles

(a + d) + b = 180° (Interior angles)

{26}^{o}  + d +  {48}^{o}  =  {180}^{o}  \\ d +  {74}^{o}  =  {180}^{o}  \\ d =  {180}^{o}  -  {74}^{o}  \\ d =  {106}^{o}

8 0
2 years ago
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dalvyx [7]

Answer:

t = 1/2n-6, nER

Step-by-step explanation:

4 0
2 years ago
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Delicious77 [7]

Answer:

x=75

Step-by-step explanation:

8 0
2 years ago
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Murrr4er [49]

Answer:

thought i had it but answer is B......

 

6 0
3 years ago
Can someone solve this
Natalka [10]

Option D:

ΔCAN ≅ ΔWNA by SAS congruence rule.

Solution:

Given data:

m∠CNA = m∠WAN and CN = WA

To prove that ΔCAN ≅ ΔWNA:

In ΔCAN and ΔWNA,

CN = WA (given side)

∠CNA = ∠WAN (given angle)

NA = NA (reflexive side)

Therefore, ΔCAN ≅ ΔWNA by SAS congruence rule.

Hence option D is the correct answer.

4 0
3 years ago
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