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Tanya [424]
2 years ago
13

Find the area of the triangle

Mathematics
2 answers:
DaniilM [7]2 years ago
4 0
<h3>Solution:</h3>
  • We know, area of a triangle = 1/2 × base × height.
  • Here, base = (9-3) units = 6 units.
  • Height = (5-1) units = 4 units.
  • Therefore, area of the triangle

= (1/2 × 6 × 4) square units

= (3 × 4) square units

= 12 square units

<h3>Answer:</h3>

The area of the triangle is 12 square units.

Hope it helps.

Do comment if you have any query.

Nonamiya [84]2 years ago
4 0
<h2>Answer:</h2>

=================================================

<h3>Explanation/Solution:</h3>

First, Identify what is the height and base of the triangle.

\rightarrow Height = 4 units

\rightarrow Base = 6 units

\\

Now to find the area of the triangle, use the formula:

\rightarrow Area = \sf \frac{Height × Base }{2}

Solve.

\rightarrow = \sf \frac{4 × 6}{2}

\rightarrow= \sf \frac{24 }{2}

\rightarrow = 12

Therefore, the area of the triangle is 12 units.

=================================================

#CarryOnLearning

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if the area of a sector is 15pi square cm and the radius is 5cm find the measure of the central angle​
GalinKa [24]

Given:

Area of a sector = 15\pi

Radius = 5 cm

To find:

The central angle.

Solution:

The area of a sector is:

A=\dfrac{1}{2}r^2\theta

Where, r is the radius and \theta is the central angle in radians.

Putting A=15\pi, r=5 in the above formula, we get

15\pi=\dfrac{1}{2}(5)^2\theta

Multiply both sides by 2.

30\pi=25\theta

Divide both sides by 25.

\dfrac{30\pi}{25}=\theta

\dfrac{6\pi}{5}=\theta

Therefore, the central angle in radians is \theta=\dfrac{6\pi}{5}.

4 0
3 years ago
If one side of a square notebook measures 20 cm, what is the area of the front cover of the notebook?
jarptica [38.1K]

Answer:

400 cm squared

Step-by-step explanation:

Since a square has all equal sides, this would mean the the all the other sides are 20 as well. To get the area, you would just multiply 20 by 20 to get 400. :)

6 0
3 years ago
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The graphs of ​ f(x)=2x+4 ​ and ​ g(x)=10−4x ​ intersect at (1, 6) . What is the solution of the equation 2x+4=10−4x ? Enter you
Yuliya22 [10]

Answer:

x=1

Step-by-step explanation:

we have

f(x)=2x+4 -----> equation A

g(x)=10-4x ----> equation B

we know that

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so

The solution of the equation 2x+4=10-4x is equal to the x-coordinate of the solution of the system of equations

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3 years ago
A jet plane flies at 450 miles per hour. How far does it travel in 18 minutes
SVEN [57.7K]
<h3><u>How to solve this problem?</u></h3>

The way I would solve this problem is by first finding the unit rate, or the rate that the jet plane travels in one minute. Then I would multiply the rate by the number of minutes I want to know how far the jet plane flies; in this case it would be multiplied by 18 minutes.

<h3><u>Finding the unit rate.</u></h3>

Let's start by finding the unit rate. To find the unit rate we would divide the ratio, 450 miles:60 minutes (one hour) by 60 minutes to make the 60 minutes become one minute and 450 miles become 7.5 miles.

450 miles:60 minutes ÷ 60/60

7.5 miles:1 minute

<h3><u>Solving the question.</u></h3>

The unit rate is 7.5 miles per minute. Since we know the jet plane flies 7.5 miles every one minute, we can multiply this amount by 18 minutes to find how many miles the place can fly in 18 minutes.

7.5 miles * 18 minutes = 135 miles

The answer to your question is the jet plane travels 135 miles in 18 minutes.

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