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irakobra [83]
3 years ago
10

An equilateral triangle has a semiperimeter of 6 meters. What is the area of the triangle? Round to the nearest square meter. 2

square meters 7 square meters 20 square meters 78 square meters
Mathematics
2 answers:
Lelu [443]3 years ago
8 0
I wanna say 7 is the neatest round
ale4655 [162]3 years ago
7 0
Ok so if the half of the perimeter is 6. 6×2=12...
There are three sides so 12/3 =4.......4m is the length of each side.
If we draw a line straight down the top of the triangle down to the middle of the base.....this line would be the height of the eq. triangle. This gives us a right triangle where a is unknown, b =2, and c=4
a^2+b^2=c^2
a^2+4=16
a=2×sqrt3
a is the height of the eq.

The area of the eq = 1/2× base × height

A=(1/2)×4×2sqrt3
A=6.93

So 7m^2 is the answer
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5 0
3 years ago
will givebrainlyest and 46 points need asap right tringle the base of the trinagle has a base of ten and the angle on the right
Elenna [48]
<h2>Answer: </h2>

<u>In a right triangle, Relation of base and hypotenuse is cosine</u>.

cos40° = 10/h

0.76604 = 10 × h

0.76604h = 10

h = 10/0.76604 = 13.05units.

7 0
2 years ago
What value represents the horizontal translation from the graph of the parent function f(x) = x2 to the graph of the function
kirza4 [7]
The negative 4 in the parenthesis caused the graph to move four units to the right. 
7 0
3 years ago
Read 2 more answers
How to solve 32-2(23-16)+4*4*3
scoundrel [369]

Answer:

66

Step-by-step explanation:

Order of operations:

32-2(7)+4*4*3

32-14+48

66

4 0
3 years ago
Read 2 more answers
What's the best Approximation? :3
musickatia [10]
Area of shaded region = Area of larger circle - Area of smaller circle.

We know, Area of a Circle = πr²
So, A = πr₁² - πr₂²
A = π (r₁² - r₂²)
A = π(10.2² - 5.4²)
A = 3.14 (104.04 - 29.16)
A = 3.14 (74.88)
A = 235.12

In short, Your Answer would be 235.12 cm²

Hope this helps!
3 0
3 years ago
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