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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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Mind explaining anyone?
8090 [49]
Do 45/225 and simplify and that’s your answer
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3 years ago
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I need help with this question
dsp73
The slope is 9/3 which can be simplified into 3/1
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2 years ago
Derek is hang gliding on a clear day at an altitude of a feet. His visibility, v, is 67.1 mi. Use the formula v = 1.225 to find
Margaret [11]

Base on the visibility formula v = 1.225√a, the altitude at which Dereck is hang gliding is 7.4 miles

<h3>How to find altitude using visibility formula?</h3>

The visibility formula is given as follows:

v = 1.225√a

where

  • a = altitude
  • v = visibility

Therefore,

v = 67.1 miles

v = 1.225√a

67.1 = 1.225√a

divide both sides by 1.225

√a = 67.1 / 1.225

√a = 54.7755102041

square both sides

√a² = √54.7755102041

a = 7.40104789878

a = 7.4 miles

learn more on visibility here: brainly.com/question/16166215

6 0
2 years ago
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6(2x+4)=4(3x+6) solve and show work
Afina-wow [57]

Answer:

0=0

Step-by-step explanation:

6(2x+4)=4(3x+6)

Step 1: Simplify both sides of the equation.

6(2x+4)=4(3x+6)

(6)(2x)+(6)(4)=(4)(3x)+(4)(6)(Distribute)

12x+24=12x+24

Step 2: Subtract 12x from both sides.

12x+24−12x=12x+24−12x

24=24

Step 3: Subtract 24 from both sides.

24−24=24−24

0=0

5 0
3 years ago
A town in east Texas recieved 10 inches of rain in two weeks. If it kept raining at this rate for a 31-day month, how much rain
Gelneren [198K]
The best way to approach this problem is to find out how much fell in week. As you know what two weeks is, you simply have to halve this, giving you that one week is 5 inches of rain. One you have this, you can multiply this by 4 (as this will give you 4 weeks, or 28 days), and this gives you 20 inches in 28 days. You should then find the odd three days. If you divide 5 by 7, this will give you the rain fall in one day. 5/7= 0.8 inches per day. You then have top multiply this by 3 (as you've got three odd days), and this gives you 2.4. You then have to add together 2.4 and 20, giving you 22.4
Therefore, if the rain continued to fall at the same rate for 31 days, it would receive 22.4 inches of rain.
Hope this helps :) 
8 0
3 years ago
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