186k views
3 votes
Can someone help me with this? Thank you!

Can someone help me with this? Thank you!-example-1

2 Answers

3 votes

Answer:

The value of T is 69.5°

Explanation:

We know that the sum of all angles in a triangle is equal to 180°

So,

(T - 6)° + T° + 47° = 180°

T° - 6° + T° + 47° = 180°

2T° + 41° = 180°

Now, Subtract 41° from both side we get,

2T° + 41° - 41° = 180° - 41°

2T° = 139°

Now, Divide both side by 2 we get,

2T°/2 = 139°/2

T = 69.5°

Thus, The value of T is 69.5°

Now,

T = 69.5°

(T - 6)° = (69.5° - 6°) = 63.5

For Verification Only:-

T° - 6° + T° + 47° = 180°

69.5° - 6° + 69.5° + 47° = 180°

180° = 180°

L.H.S = R.H.S

Hence Proved!

-TheUnknownScientist 72

User NStuke
by
6.4k points
2 votes

To solve this problem, we must keep in mind that all of the interior angles of a triangle must add up to 180 degrees. Using this knowledge, we can create an equation that has the sum of the three interior angles (T, T-6, and 47) set equal to 180. This is shown below:

47 + T + (T - 6) = 180

To solve this problem, we should begin by combining like terms on the left side of the equation. This means adding/subtracting all of the variable terms together and all of the constant (number) terms together.

47 - 6 + T + T = 180

41 + 2T = 180

Next, we should subtract 41 from both sides of the equation so that all of the constants are on the right side of the equation.

2T = 139

Finally, we should divide both sides of the equation by 2 to get the variable T alone on the left side of the equation.

T = 69.5

This means that the value of T is 69.5 degrees, which makes your angles measure 47 degrees, 69.5 degrees, and 63.5 degrees.

Hope this helps!

User Salim Fadhley
by
6.1k points