Question

# Find the measure of each angle in the diagram.

- 140, 40, 140, 40
- 120, 60, 120, 60
- 130, 50, 130, 50
- 110, 70, 110, 70

Hint:

### Opposite angles made by traversal are equal.

## The correct answer is: 140, 40, 140, 40

### The given fig shows that the angles formed by using traversal.

Using the property of intersection of traversal, we can say that,

Vertical angles are congruent.

That means opposite angles are of equal length.

Now first we will calculate the value of x.

2(5x – 5) = 6x + 50

10x – 10 = 6x + 50

4x = 60

Now we will calculate the value of y.

5y + 5 = 7y – 9

2y = 14

y = 7

Now we will calculate the angles:

Angle 1 = 10x – 10 = 140°

Angle 2 = 7y – 9 = 49 – 9 = 40°

Angle 3 = 140°

Angle 4 = 40°

So the correct option is b.

### Related Questions to study

### Complete the statement with <, >, or =.

If m∠ 4 = 30, then m∠ 5? m∠ 4.

When two angles are formed on a straight line, they are called linear pair.

### Complete the statement with <, >, or =.

If m∠ 4 = 30, then m∠ 5? m∠ 4.

When two angles are formed on a straight line, they are called linear pair.

### Complete the statement with <, >, or =.

m∠ 8 + m∠ 6? 150

When two angles are formed on a straight line, they are called linear pair.

### Complete the statement with <, >, or =.

m∠ 8 + m∠ 6? 150

When two angles are formed on a straight line, they are called linear pair.

### What is the reason for statement 2?

Statement | Reason | |

1 | ||

2 | ||

3 |

Alternate exterior angles are always equal.

### What is the reason for statement 2?

Statement | Reason | |

1 | ||

2 | ||

3 |

Alternate exterior angles are always equal.

### What is the reason for statement 3?

Statement | Reason | |

1 | ||

2 | ||

3 |

Corresponding angles are equal.

### What is the reason for statement 3?

Statement | Reason | |

1 | ||

2 | ||

3 |

Corresponding angles are equal.

### Solve for *x*.

In math, a linear pair of angles are those two adjacent angles whose sum is 180°.

### Solve for *x*.

In math, a linear pair of angles are those two adjacent angles whose sum is 180°.

### Solve for *x*.

When two lines intersect each other, then the opposite angles, formed due to intersection are called vertical angles or vertically opposite angles.

### Solve for *x*.

When two lines intersect each other, then the opposite angles, formed due to intersection are called vertical angles or vertically opposite angles.

### Angles 4 and 1 are what angle pair?

Supplementary angles can either be adjacent or non-adjacent. So, there are two types of supplementary angles. Each of these types of supplementary angles is explained below.

(1) Adjacent Supplementary angle.

(2) Non - Adjacent Supplementary angle.

### Angles 4 and 1 are what angle pair?

Supplementary angles can either be adjacent or non-adjacent. So, there are two types of supplementary angles. Each of these types of supplementary angles is explained below.

(1) Adjacent Supplementary angle.

(2) Non - Adjacent Supplementary angle.

### What is the value of *x*?

When two lines intersect each other, then the opposite angles, formed due to intersection are called vertical angles or vertically opposite angles.

### What is the value of *x*?

### Name a pair of angles that are vertical.

They are always equal to each other. In other words, whenever two lines cross or intersect each other, 4 angles are formed. We can observe that two angles that are opposite to each other are equal and they are called vertical angles.

### Name a pair of angles that are vertical.

They are always equal to each other. In other words, whenever two lines cross or intersect each other, 4 angles are formed. We can observe that two angles that are opposite to each other are equal and they are called vertical angles.

### Find the values of *x* and *y*.

Vertically opposite angles are always equal.

### Find the values of *x* and *y*.

Vertically opposite angles are always equal.

### In a figure, ∠ A and ∠ D are complementary angles and m∠ A = 4x. Which expression can be used to find m∠ D?

Sum of angles A and D is 90°.

### In a figure, ∠ A and ∠ D are complementary angles and m∠ A = 4x. Which expression can be used to find m∠ D?

Sum of angles A and D is 90°.

### Given that m∠FHE = m∠BHG = m∠AHF = 90 in the below diagram, answer the following:

If m∠3 = 32, then m∠2 =?

Angle 2 and 3 form a right angle.

### Given that m∠FHE = m∠BHG = m∠AHF = 90 in the below diagram, answer the following:

If m∠3 = 32, then m∠2 =?

Angle 2 and 3 form a right angle.

### Given that m∠FHE = m∠BHG = m∠AHF = 90 in the below diagram, answer the following:

if m∠ DHF = 133, then m∠ CHG =?

Vertical angles are formed when two lines meet each other at a point.

### Given that m∠FHE = m∠BHG = m∠AHF = 90 in the below diagram, answer the following:

if m∠ DHF = 133, then m∠ CHG =?

Vertical angles are formed when two lines meet each other at a point.

### Given that m∠FHE = m∠BHG = m∠AHF = 90 in the below diagram, answer the following:

If m∠6 = 27, then m∠1 =?

Vertical angles are formed when two lines meet each other at a point.

### Given that m∠FHE = m∠BHG = m∠AHF = 90 in the below diagram, answer the following:

If m∠6 = 27, then m∠1 =?

Vertical angles are formed when two lines meet each other at a point.

### Given that m∠FHE = m∠BHG = m∠AHF = 90 in the below diagram, answer the following:

if m∠ BHF = 115, then m∠3 =?

Vertical angles are formed when two lines meet each other at a point.

### Given that m∠FHE = m∠BHG = m∠AHF = 90 in the below diagram, answer the following:

if m∠ BHF = 115, then m∠3 =?

Vertical angles are formed when two lines meet each other at a point.