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mylen [45]
3 years ago
13

Why do triangles interior angles sum to 180°?

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
4 0
A squares interior able sun is 360 and half of a square is a triangle making the interior angle also 180 because half of 360 is 180. Idk how else to answer this because it’s just something that we all know
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Who was the first president of united state
STatiana [176]
George Washington
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7 0
3 years ago
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The railing of a wheelchair ramp is parallel to the ramp. Find x and y in the diagram.
yKpoI14uk [10]

Given:

The wheel chair ramp is parallel to the ramp.

To find:

The value of x and y.

Solution:

If two lines are parallel, then the alternate interior angles are congruent.

4x° + 6y° = 86° --------- (1)

Similarly,

5x° + 6y° = 94°

Subtract 5x° from both sides.

5x° + 6y° - 5x° = 94° - 5x°

6y° = 94° - 5x° --------- (2)

Substitute (2) in (1).

4x° + 94° - 5x° = 86°

94° - x° = 86°

Subract 94° on both sides.

94° - x° - 94° = 86° - 94°

- x° = 86° - 94°

- x° = -8°

Multiply by -1 on both sides, we get

x = 8

Substitute x = 8 in (2).

6y° = 94° - 5(8)°

6y° = 54°

Divide by 6 on both sides, we get

y = 6

The value of x is 8 and y is 6.

5 0
3 years ago
In ΔBCD, \overline{BD} BD is extended through point D to point E, m∠CDE = (6x-13)^{\circ}(6x−13) ∘ , m∠BCD = (2x+10)^{\circ}(2x+
AveGali [126]

Answer:

  m∠CDE = 35°

Step-by-step explanation:

The exterior angle CDE is equal to the sum of the opposite interior angles, BCD and DBC. So, you have ...

  6x -13 = (2x+10) +(x +1)

  3x -24 = 0 . . . . . . . . . . . . subtract the right side, simplify

  x -8 = 0 . . . . . . . . . . . . . . divide by 3

  x = 8 . . . . . . . . . . . . . . . . . add 8

  6x -13 = 6·8 -13 = 35 . . . . substitute for x in the expression for CDE

The measure of angle CDE is 35°.

7 0
3 years ago
Help me find x please
Sedaia [141]

Answer:

\displaystyle 13 = x

Step-by-step explanation:

All three angles in an equilateral triangle are equivalent, and they sum up to 180°, so each angle measures 60°:

60° = [8x - 44]°

+ 44° + 44°

____________

\displaystyle \frac{104°}{8} = \frac{[8x]°}{8} \\ \\ 13° = x

I am joyous to assist you anytime.

6 0
3 years ago
Find the real or imaginary solutions of each equation by factoring ? x^3 - 1000 = 0
Kamila [148]
I hope this helps you




x^3=1000



x^3= 10^3


x=10
4 0
3 years ago
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