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Zanzabum
3 years ago
10

Triangle ABC has angle measures as shown A x-5 B 3x+30 C 35 qhat is the value x

Mathematics
2 answers:
Allushta [10]3 years ago
6 0

Answer:

The value of x = 30

Step-by-step explanation:

It is given that,

In triangle ABC,

<A = x - 5, <B =  3x + 30 and <C = 35

<u>To find the value of x</u>

<A + <B + <C = 180   [ angle sum property]

(x - 5 ) + (3x + 30 ) + 35 = 180

x - 5 + 3x + 30 + 35 = 180

x + 3x - 5 + 30 + 35 = 180

4x + 60 = 180

4x = 180 - 60

4x = 120

x = 120/4 = 30

Therefore the value of x = 30

<u>To find <A and <B</u>

<A = x - 5

<A = 30 - 5 = 25°

<B =  3x + 30

<B = 3*30 + 30 = 90  + 30 = 120°

Vinvika [58]3 years ago
5 0

Answer:

x=30\ degrees

m

m

Step-by-step explanation:

we know that

The sum of interior angles in a triangle must be equal to 180 degrees

so

(x-5)+(3x+30)+(35)=180\°

solve for x

4x=180\°-60\°

4x=120\°

x=30\°

m

m

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