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Mazyrski [523]
4 years ago
12

all triangles have two acute angels. the third angle is used to classify the triangle. two acute angles are labeled in the trian

gle shown below. based on the third angle, what type of triangle is shown?
Mathematics
1 answer:
kondor19780726 [428]4 years ago
3 0
If the third angle of the triangle is a right angle, (if it has a "box"), then the triangle is an acute right triangle. ((depends of the third angle which is not shown))
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The measurement of angles are :

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Given,

The figure with parallel lines.

Angle 3 is given as 57°

We have to find the other angles.

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∠1 + ∠3 = 180° ; Sum of transversal angles is 180°

So,

∠1 = 180 - 57 = 123°

  • The measure of angle 2;

∠2 = ∠3 ; Vertical angles are ≅

So, ∠2 = 57°

  • The measure of angle 4;

∠1 = ∠4 ; Vertical angles are ≅

So, ∠4 = 123°

  • The measure of angle 5;

∠1 = ∠5 ; Corresponding angles are ≅

So, ∠5 = 123°

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∠2 = ∠6 ; Corresponding angles are ≅

So, ∠6 = 57°

  • The measure of angle 7;

∠6 = ∠7 ; Vertical angles are ≅

So, ∠7 = 57°

  • The measure of angle 8;

∠5 = ∠8 ; Vertical angles are ≅

So, ∠8 = 123°

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How can you tell when a quadratic equation has two identical, rational solutions?
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Answer:

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Step-by-step explanation:

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