All categories

2 years ago

Find a and b from the picture

Mathematics

1 answer:

Anni [7]2 years ago

5 0

Answer:a is 40 degrees

b is 140 degrees

Step-by-step explanation:

The given polygon has 5 irregular sides. This means that it is an irregular pentagon. The sum of the exterior angles of a polygon is 360 degrees

The exterior angles of the given pentagon are a, 75, 65, 60 and 120. Therefore

a + 75 + 65 + 60 + 120 = 360

a + 320 = 360

Subtracting 320 from both sides of the equation, it becomes

a = 360 - 320 = 40 degrees

The sum of angles on a straight line is 180/degrees. Therefore,

a + b = 180

b = 180 - a = 180 - 40 = 140 degrees

You might be interested in

HELPP MEEEEEE<br> Find the slope of this graph.

kati45 [8]

Answer:

that this 6+6

Step-by-step explanation:

78+90 look than

4 0

2 years ago

Read 2 more answers

A refrigerator box measures 11 feet by 6 feet by 6 feet Sam decides to fill up the box three-fourths with trash how much space w

IRINA_888 [86]

Answer:

297 feet

Step-by-step explanation:

11 × 6 × 6 = 396

396 × 3/4= 297 ft

3 0

2 years ago

solve the average time for a student to complete this quiz is 24 24 minutes with a standard deviation of 2 minutes. What is the

LuckyWell [14K]

Answer:

The correct answer is "(18, 30) minutes".

Step-by-step explanation:

Mean,

= 24

Standard deviation,

= 2

The range of minutes where 99.7% of individuals completed the quiz will be:

= $Mean \pm 3\times Stdev$

On substituting the values, we get

= $24 \pm 3\times 2$

= $24 \pm 6$

now,

= $24-6$

= $18$

Or,

= $24+6$

= $30$

i.e., 18 to 30 minutes

3 0

2 years ago

What is a dividen in a qoutient?

konstantin123 [22]

Answer:

The number which we divide is called the dividend. The number by which we divide is called the divisor. The result obtained is called the quotient.

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

A triangle has side lengths of (3.7b+ 1.7) centimeters, (1.3b + 1.1) centimeters,

nata0808 [166]

Perimeter of Triangle -:

( 3.7 b + 1.7 +1.3b +1.1 + 7.1 c + 5.1 )

now solve by ur self

4 0

2 years ago

Find a and b from the picture​

Find a and b from the picture