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Rufina [12.5K]
3 years ago
15

Pls help me I will Brianlest

Mathematics
2 answers:
adoni [48]3 years ago
5 0

Answer:

18

Step-by-step explanation:

Harman [31]3 years ago
4 0

Answer: 18

Step-by-step explanation:

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Mñ<br><img src="https://tex.z-dn.net/?f=m%20%3C%20c%20%3D%2036%20%5C%5C%20m%20%3C%20b%20%3D%20123%20%5C%5C%20find%20%5C%3A%20%5C
Aleksandr [31]

Using exterior angle formula, you get that ∠CAD=36+123=159°


Exterior angle formula says that the angles facing CAB (ACB and ABC) sum to CAD.


7 0
4 years ago
The perimeter of an equilateral triangle is 26 centimeters. Find the altitude of the triangle
ioda

We have P = 3 x a (the formula of the perimeter); 26 = 3 x a ; we obtain a = 26/3;

Then, we have  <span>the Pythagorean Theorem in one of two rectangular and congruent triangles :</span>

h² = a² - (a/2)² = a² - a²/4 = 4a²/4 - a²/4 =<span> 3a²/4</span>

It follows that

h = √(3a²/4) = a√3/2 ≈ 0,866*a ≈ 7,5 centimeter.

5 0
3 years ago
If ADAB ACBA,<br> ZD = 132° and ZC = x + 18
d1i1m1o1n [39]

Answer:

x = 114

Step-by-step explanation:

since the triangles are congruent then corresponding angles are congruent, then

∠ C = ∠ D , that is

x + 18 = 132 ( subtract 18 from both sides )

x = 114

8 0
2 years ago
Which fraction is great than 2/5?
zysi [14]
1/2 or 1 whole that's the answer
4 0
3 years ago
Read 2 more answers
23. What is the degree of the monomial? (1 point)<br> 7x8<br> 07<br> 08<br> O 15<br> 056
Drupady [299]
It is the sum of the exponents of all its variables
6 0
3 years ago
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