1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elodia [21]
2 years ago
12

The side lengths of a right triangle are 18 cm, 24 cm, and 30 cm. You are asked to find the area of the triangle by using A = 1/

2bh. 1. How do you decide which side lengths to use? 2. Find the area of the right triangle. PLS HELP
Mathematics
1 answer:
vekshin12 years ago
6 0

Answer:

1. Use the Adjacent and opposite side (Ignore the Hypotenuse)

Or use HERO'S FORMULA based on the information given

2. Area = 216cm^2

Step-by-step explanation:

There are three to four ways we can go about finding the area of a triangle. And a these would be dependent on the information given about the triangle.

From the question, you said the three side lengths are given. In such case, we employ the HERO FORMULA.

HERO FORMULA:

Area = √ s(s-a)(s-b)(s-c)

where s = 1/2(a + b + c)

a, b, c are the three sides

But since the question insisted that we use 1/2* base * height. Let's use our know of right angle to dissolve that.

A right angle triangle has three sides. The longest is always the Hypotenuse.

Let's take it this way.

Hypotenuse = 30cm

Opposite= 18cm

Adjacent = 24cm

Area = 1/2 * base * height

Area = 1/2 * 18 * 24

Area = 1/2 * 432

Area = 216cm^2

We ignored the longest side, (the Hypotenuse)

You might be interested in
HELP PLZZZZZZZZ
klio [65]

Answer:

Hewo Asuna here

Your answer is B

Step-by-step explanation:

Hope this helps!

5 0
2 years ago
Read 2 more answers
Translate the algebraic expression in written language: 9 - x²​
Assoli18 [71]

Answer:

nine minus x square

8 0
2 years ago
If the directrix of a parabola is the horizontal line y = 3, what is true of the parabola?
12345 [234]
The correct answer is b), or x² = -12y.

Explanation:
This equation may be written in standard form as
y=- \frac{1}{12} x^{2}
The coefficient in front of x² is negative so the curve is downward.
The vertex has coordinates (0,0).
The vertex is equidistant from the directrix and the focus, so the focus is (0, -3).

3 0
3 years ago
Read 2 more answers
What shape is both a rhombus and rectangle?
fenix001 [56]

Answer:

A square

Step-by-step explanation:

Definition of a rhoumbus: Shape that 4 sides that are all equal

Definition of a rectangle: 4 Right Angles

Definition of a square: All sides and angles are equal.

So, the square has 4 right angles, and has 4 equal sides

8 0
3 years ago
Can someone plz help me solved this problem! I’m giving you 10 points! I need help plz help me! Will mark you as brainiest!
pickupchik [31]

Hey there! :)

Answer:

a. 3

b. -22

c. -2

d. -2

e. 5a + 8

f. a² + 6a + 3

Step-by-step explanation:

Calculate the answers by substituting the values inside of the parenthesis for 'x':

a. f(1) = 5(1) - 2 = 3

b. f(-4) = 5(-4) - 2  = -22

c. g(-3) = (-3)² + 2(-3) - 5 = 9 - 6 - 5 = -2

d. g(1) = 1² + 2(1) - 5 = 1 + 2 -5 = -2

e. f(a+ 2) = 5(a+2) - 2 = 5a + 10 - 2 = 5a + 8

f. g(a + 2) = (a + 2)² + 2(a + 2) - 5 = a² + 4a + 4 + 2a + 4 - 5 =

a² + 6a + 3

7 0
3 years ago
Other questions:
  • Billy is making a juice that contains 3 quarts of water, 1 quart of grape juice, 1 quart of orange juice, and 2 quarts of strawb
    8·1 answer
  • The rectangle has a length of -2x + 10 and a width of 10. a) Find the area of the rectangle and simplify.​
    7·1 answer
  • 4 Ayla s is paid $15 20 per hour for a 34 hour week. April has the same weekly pay but works 38
    13·1 answer
  • Find the volume of the following cone
    14·1 answer
  • Jason built a rectangular tool shed that is 8 meters wide and has an area of 96 square meters. What is the length of Jason’s too
    13·1 answer
  • ***I WILL GIVE BRAINIEST TO THE CORRECT ANSWER**
    9·2 answers
  • Plz help me
    9·1 answer
  • 3 1⁄3 × 2 3⁄4 × 1 1⁄5 =
    10·2 answers
  • Solve this following system by graphing <br> X-y=4<br> X+y=2
    12·1 answer
  • What is the distance of the line drawn between points (–1,–2) and (–9,4)?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!