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natta225 [31]
3 years ago
13

A quadrilateral has two angles that measure 240° and 70°. The other two angles are in a ratio of 2:3. What are the measures of t

hose two angles?
Mathematics
1 answer:
sergey [27]3 years ago
4 0

Answer:

The two missing angles are 20 and 30 degrees.

Step-by-step explanation:

Quadrilaterals have four interior angles that add up to 360 degrees.

So we have two angles that are 240 degrees and 70 degrees.

If 240 + 70 = 310

That means the other two angles added together must be equal 50.

Because 360 - 310 = 50

So their ratio is 2:3 which means they have five equal parts.

Which would mean 50/5 = 10

2 x 10 = 20

3 x 10 =30

This means the missing angles are 20 and 30 degrees.

Hope this helped you!

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Help me mathematics​
Ede4ka [16]

Answer:AB=15 ,angle A=53.1°,angle B=36.9°

Step-by-step explanation:

AB=√(12^2+9^2)

AB=√(12x12+9x9)

AB=√(144+81)

AB=√(225)

AB=15

TanA=12/9

TanA=4/3

A=Tan(inverse)(4/3)

A=53.1° angle A=53.1°

angle B=180-(90+53.1)

angle B=180-143.1

angle B=36.9°

8 0
4 years ago
Help I don’t know the answer
mihalych1998 [28]
Supplementary angles are 1 and 2 because they equal 180.
The vertical angles are angles 4 and 2 because they are opposite from each other.
8 0
3 years ago
Students who party before an exam are twice as likely to fail as those who don't party (and presumably study). If 20% of the stu
True [87]

Answer:

The fraction of the students who failed to went partying = \frac{1}{10}

Step-by-step explanation:

Let total number of students = 100

No. of students partied are twice the no. of students who not partied.

⇒ No. of students partied = 2 × the no. of students who are not partied

No. of students partied before the exam = 20 % of total students

⇒ No. of students partied before the exam = \frac{20}{100} × 100

⇒ No. of students partied before the exam =  20

No. of students who not partied before the exam = \frac{20}{2} = 10

Thus the fraction of the students who failed to went partying = \frac{10}{100} = \frac{1}{10}

8 0
4 years ago
In a class of 62 students, the number of females is one less than twice the number of males. How many females and how many males
lawyer [7]
Hopefully i helped you.
7 0
3 years ago
Susan has $800 in a savings account that earns 6% annually. If the interest is not compounded, how much interest will she earn i
Julli [10]

$240

800x.06= 48

48x5=240

7 0
3 years ago
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