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
natulia [17]
3 years ago
8

An equilateral triangle has a side length of 16 cm work out the area of the triangle.

Mathematics
2 answers:
bonufazy [111]3 years ago
4 0

Answer:

128cm²

Step-by-step explanation:

A=½×b×h

A=½×16cm×16cm

A=½×256cm²

A=128cm²

uysha [10]3 years ago
4 0

Answer:

110.9 cm²

Step-by-step explanation:

The area (A) of an equilateral triangle is calculated as

A = \frac{s^2\sqrt{3} }{4}  ( s is the side length )

Here s = 16, thus

A = \frac{16^2\sqrt{3} }{4}

   = \frac{256\sqrt{3} }{4} = 64\sqrt{3} ≈ 110.9 cm² ( to 1 dec. place )

You might be interested in
0.396 divided by 0.111
vredina [299]

About 3.5675 i need more characters so toodles

3 0
3 years ago
Read 2 more answers
Trudy bought 1 foot of fabric. If she cuts the fabric into 3-inch pieces, how many pieces will she have?
WINSTONCH [101]

Answer:

Trudy will have 4 pieces of the fabric.

Step-by-step explanation:

Since, 1 foot of the fabric = 12 inches

If Trudy cuts the fabric into pieces of 3 inch.

Number of pieces she will have = \frac{\text{Total length of the fabric}}{\text{Length of one piece}}

                                                     = \frac{12}{3}

                                                     = 4 pieces

Therefore, she will have 4 pieces of the fabric.

5 0
2 years ago
15 percent converted to a simply fractin work it a out if your gonna answer​
Elza [17]
All percents are out of 100 so start with 15/100 and then simplify

3/20
5 0
3 years ago
Evaluate y5 + x(-7)<br> When x = 2, y = -5
Ymorist [56]

Answer:

45

Step-by-step explanation:

OK, first we turn the variables into into the actual values:

The equation will look like this:

(2)5 + (-5)(-7)

Now its easier to solve!  Lets solve (2)5!

2 * 5 = 10

The equation looks like:

10 + (-5)(-7)  

We will also solve (-5)(-7). Remember that a negative number times a negative number is positive!

-5 * -7 = 35

Lets finish the rest:

10 + 35 = 45.          

Hope this is correct and have a nice day!      

3 0
3 years ago
K divided by 11 is 7.<br>​
sp2606 [1]

Answer:

ok

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • Simplify the following 3√28-5√63+4√112
    15·2 answers
  • Patrick pays $10 per month for recycling. He expects the cost to increase 90¢ every 3 years. What is the slope that represents h
    13·1 answer
  • Can someone please help me with this, marking brainliest and giving 15 points!
    10·1 answer
  • The composite figure is made up of a triangular prism and a pyramid. The two solids have congruent bases. A triangular pyramid i
    8·2 answers
  • Rebeccas pre-k group has 2/7 of a tub of goldfish. there are 4 kids in her group. The teacher wants to give them all the same am
    6·2 answers
  • The circumference of one coin is 8.03cm. The circumference of another coin is 0.33cm smaller. A.) what is the first step to find
    9·1 answer
  • What is the result when you combine only the constants in the following expression? 3 a minus 6 b + 3 minus 7 a + 10
    10·2 answers
  • Solve by factorisation 2x^2+3x-20=0
    10·1 answer
  • Al runs at a constant rate. It takes him 44 minutes to run 4 miles. Identify and graph three points that model the relationship
    7·1 answer
  • How to solve Need Answer asap
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!