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torisob [31]
3 years ago
6

What is the area of this triangle?

Mathematics
1 answer:
amid [387]3 years ago
7 0
We can solve for the 3 triangle sides.
The left side is easy 6.
Second side² = 7² + 4²
Second side² = 49 + 16
Second side = square root (65)
Second side = <span> <span> <span> 8.0622577483 </span> </span> </span>
Third Side² = 7² + 2²
Third Side² = 53
Third Side = <span> <span> <span> 7.2801098893 </span> </span> </span>
When we know 3 sides, we use Heron's formula for calculating area:
Perimeter = <span> <span> <span> 21.3423676376 </span> </span> </span>
Semi-Perimeter = <span> <span> <span> 10.6711838188 </span> </span> </span>
Using Heron's Formula
area = square root (<span>10.6711838188 * </span><span>4.6711838188 * </span> <span> <span> <span> 2.6089260705 </span> </span> </span> * <span> <span> <span> 3.3910739295 </span> </span> </span> )
area = square root (441)
area = 21

Yes, it's just that "easy".  LOL

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2) What is a definition of a line that is parallel to XY?
makvit [3.9K]

Answer:

it's b

Step-by-step explanation:

parallel lines stay the same distance away from each other all the time. they could go on forever and would never cross. think of a parallelogram. the lines always stay the same width apart, like train tracks. this would mean that is is b because it does not intersect xy

5 0
3 years ago
Someone please help me asap,
professor190 [17]

<em>Answer:</em>

Below is the complete proof.

<em />

<em>STATEMENT                              REASON  </em>

___________________________________________________

1. BC = EF                                    1. Given

2. AB + BC = AC                         2. Betweenness

3. AC > BC                                  3. Def. of segment inequality

4. AC > EF                                   4. Def. of congruent segments

Explanation:

  1. As BC = EF is given
  2. AB + BC = AC because it holds betweenness. Betweenness defines that if a point B is between points A and C, then the length of AB and the length of BC is equal to the length of AC.
  3. AC > BC because the Parts Theorem (Segments) mentions that if B is a point on AC between A and C, then AC > BC and AC>AB.
  4. AC > EF because BC = EF and if AC>BC, then it must be AC>EF.

<em>Keywords: segment, proof, statement</em>

<em> Learn more about proof, statement and reason from brainly.com/question/11775532</em>

<em> #learnwithBrainly</em>

5 0
3 years ago
Correct answer gets brainiest
Vadim26 [7]

Answer:

x + 2x + a + 90 \degree = 360\degree \\  x + 2x + 132\degree + 90 \degree = 360\degree \\ 3x + 222\degree = 360\degree \\ 3x = 360\degree - 222\degree \\ 3x = 138\degree \\ x =  \frac{138\degree}{3}  \\ \boxed{ x = 46\degree}

7 0
2 years ago
Delia worked 45 minutes on her oil painting.She took a break at 10:35 a.m.At what time did Delia start working on her painting
rjkz [21]
Um i think it would be 9:55

4 0
3 years ago
Read 2 more answers
How much cheaper per ounce is purchasing 7 ounces for $7.84 compared to purchasing 5 ounces for $5.70
WARRIOR [948]
7.84/7 = $1.12
5.70/5 = $1.14
1.14 - 1.12 = .2
2 cents cheaper
7 0
3 years ago
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