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nexus9112 [7]
3 years ago
6

Use the diagram to find the angle measures of the triangle. Recall that the sum of the angle measures of a triangle is 180°

Mathematics
2 answers:
aliina [53]3 years ago
6 0

Answer:

x° = 25°

(x + 5)° = 30°

5x° = 125°

Step-by-step explanation:

total angle inside the triangle = 180 = x + (x+5) + 5x

180 = x + x + 5 + 5x

group like terms

7x + 5 = 180

subtract 5 each sides

7x = 175

x = 175/7

x = 25°

<u>solve for : (x + 5)°</u>

(x + 5)° = 25 + 5

(x + 5)° = 30°

<u>solve for 5x°</u>

5x° = 5 * 25

5x° = 125

check

180 = x + (x+5) + 5x

180 = 25 + (25+5) + (5*25)

180 = 25 + 30 + 125

180 = 180

dexar [7]3 years ago
4 0

Answer:

\boxed{ \bold{ \sf{x = 25°}}}

\boxed{ \bold{ \sf{(x + 5) = 30°}}}

\boxed{ \bold{ \sf{5x = 125°}}}

Step-by-step explanation:

We know that sum of angle of triangle adds up to 180°

<u>Finding </u><u>the </u><u>value </u><u>of </u><u>x</u>

\sf{5x + x + x + 5 = 180°}

Collect like terms

⇒\sf{7x + 5 = 180}

Move 5 to right hand side and change its sign

⇒\sf{7x = 180 - 5}

Subtract 5 from 180

⇒\sf{7x = 175}

Divide both sides of the equation by 7

⇒\sf{ \frac{7x}{7}  =  \frac{175}{7} }

Calculate

⇒\sf{x = 25°}

<u>Finding </u><u>the </u><u>value </u><u>of </u><u>(</u><u> </u><u>x </u><u>+</u><u> </u><u>5</u><u> </u><u>)</u><u>°</u>

\sf{x + 5}

plug the value of x

⇒\sf{25 + 5}

Add the numbers

⇒\sf{30°}

<u>Finding </u><u>the </u><u>value </u><u>of </u><u>5</u><u>x</u>

\sf{5 \times 25}

Multiply the numbers

⇒\sf{125°}

Hope I helped!

Best regards!!

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