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Rainbow [258]
2 years ago
10

Which angles are acute?

Mathematics
2 answers:
postnew [5]2 years ago
5 0

Answer:

Angles DBA, GFE, and GFH (not an option) are acute.

Step-by-step explanation:

Acute means less than 90 degrees. I hope that this helps! :)

ivann1987 [24]2 years ago
5 0

Answer:

B & C

Step-by-step explanation:

Acute angles are sharp-like angle - they are measured between 1° up to 89°. That means acute angles have measurement starting from 1 to 89.

The shape of acute angles, as said, they are namely sharp angles because their vertex and lines form sharp shape.

So what you have to do is to find angles that look like a sharp pencil/pen, probably something that can be understandable:

Sharp-looking measurements are:

  • ∠DBA
  • ∠GFE

Keep in mind that ∠GFE is really an acute angle, but ∠HFE is a right angle.

Let’s look into more types of angles as shown in choices:

  • ∠DBC is an obtuse angle - it is the angle measurement between 91° up to 179°
  • ∠MLK is a right angle - it is the angle measurement of exact 90° - keep in mind, only right angles can have measurement of 90°

Hence, acute angles are ∠GFE and ∠DBA

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Veseljchak [2.6K]
Part a) 
Identify the variable and categories


By reading the above statement, we can find that there are two variables and each variable has 2 categories. The variables and their categories are:
1) Class Number
This variable is further divided into 2 categories i.e. Class 9th and Class 10th.

2) Participation in Extracurricular activities
This variable is further divided into 2 categories based on if students participated or not.

Part b)
Set up and fill 2 way table.

Since, we have 2 variables and each variable has 2 categories the number of data cells will be 2 x 2 = 4 cells

There are total 100 students. 40 students are in class 10th. This means 60 students are in class 9th.Out of 40 students in class 10th, 18 students participate in at least one extracurricular activity. So remaining 22 students do not participate. 32 students from class 9th participate in extracurricular activities, this means the remaining 28 students do not participate. Based on this data, we can fill up the table as shown below
 

6 0
3 years ago
How many ways can 5 students be arranged in straight line?​
Darina [25.2K]

Answer:

That would be 5 possibilities (or 5 events for position 1).

8 0
3 years ago
PLS HELP The positions of two divers from the water's surface after a dive are shown: Justine: −10 feet Mina: −13 feet Which ine
malfutka [58]

Answer:

Because -13 < 10, so -13 is farther from 0 than 10


8 0
3 years ago
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agasfer [191]

Answer:

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6 0
2 years ago
Evie and her father are comparing their ages. At the current time, Evie's father is 36 years older than her. Theee years from no
artcher [175]
Let F be the father's current age, and E be Evie's current age.
F = E + 36                 this is the current relation between the ages
F + 3 = 5(E + 3)        this the relationship in 3 year (hence the + 3)
Then solve by substituting one equation into another:
(E + 36) + 3 = 5(E + 3)
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7 0
3 years ago
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