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Kaylis [27]
3 years ago
6

What is m∠A ? Enter your answer in the box. ° The figure shows what appears to be obtuse triangle A B C with obtuse angle A. The

measure of angle A is left parentheses 3 times x plus 13 right parentheses degrees. The measure of angle B is left parentheses x minus 8 right parentheses degrees. The measure of angle C is x degrees.

Mathematics
2 answers:
Greeley [361]3 years ago
8 0

Answer:


Step-bSum of angles in a triangle = 180°, then:


∠H + ∠F + ∠G = 180°


(x°) + (x-5)° + (3x+25)° = 180°

Remove all parenthesis and computr


x+x-5+3x+25 = 180

5x + 20 = 180

5x=160

x = 32°, then ∠G = 3x+25 = 3(32)+25 = 121°


Read more on Brainly.com - brainly.com/question/7195756#readmorey-step explanation:


Citrus2011 [14]3 years ago
4 0

Answer:

The measure of angle A is 118°

Step-by-step explanation:

Given: The figure shows an obtuse triangle ABC with obtuse angle A. The measure of angle A is ( 3x+ 13) degrees. The measure of angle B is(x - 8 ) degrees. The measure of angle C is x degrees.

We have to find the measure of angle A that is  m ∠A.

ANGLE SUM PROPERTY OF A TRIANGLE states that in a triangle the sum of angles is always 180°

Given:

∠A = ( 3x + 13)°

∠B = ( x - 8)°

∠C = x°

Thus, applying angle sum property

∠A + ∠B + ∠C = 180°

Substitute, we get,

( 3x + 13)° + (x - 8)° + (x)° = 180°

Solving for x, we get,

3x + x + x + 5 = 180

5x = 175

Divide both side by 5, we get,

x = 35°

Thus, ∠A = ( 3x + 13)° = 118°

∠B = ( x - 8)° = 27°

∠C = x° = 35°

Thus, The measure of angle A is 118°

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