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4 years ago

A triangle has angle measures 23° and 35°. What is the measure of the third angle

Mathematics

2 answers:

Citrus2011 [14]4 years ago

8 0

Answer:

Step-by-step explanation:

The angle sum of a triangle = 180 degrees.

So to find the third angle you would just subtract 23 and 35 from 180.

Third angle = 180 - 23 - 35 = ?

Lunna [17]4 years ago

7 0

The angles in a triangle add up to 180 degrees, so the third angle must be 180 - 23 - 35 ---> 157 - 35 --> 122.

122 degrees.

Hope this helps!

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2 years ago

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3 years ago

Anna is making a banner out of 4 congruent triangles as shown below. How much blue trim will she need for each side

Ede4ka [16]

Answer:

The length of each blue trim is 17.2 inches

Step-by-step explanation:

Given

See attachment for banner

Required

The length of each blue trim

Since all 4 triangles are equal, then the dimension of 1 triangle is:

$Side\ 1 = 10$

$Side\ 2 = 14$

The hypotenuse (x) of the triangle blue trim is represented by the blue trim

So:

$x^2 = Side\ 1^2 + Side\ 2^2$

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3 0

3 years ago

Barry is trying to calculate the distance between point E(3, 1) and point F(4, 7). Which of the following expressions will he us

Masteriza [31]

Barry will use the distance formula:
d = √[(x₂ - x₁)² + (y₂ - y₁)²]
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7 0

3 years ago

Read 2 more answers

Which of the following represents the factorization of the polynomial below ?

Ugo [173]

2x² + 13x + 15

First you multiply the first and last number, 2 · 15 = 30

Now you need to find the factors of 30 that add or subtract to +13(I added the plus sign to indicate that the factors that add/subtract to 13 must come out as positive 13)

Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30 [1 · 30, 2 · 15, 3 · 10, 5 · 6]

You can do either 15 and 2 because 15 - 2 = 13, or 3 and 10 because 3 + 10 = 13.

I will be doing 10 and 3

2x² + 13x + 15 Instead of 13x, you can replace it with 3x and 10x because when you add it together it is 13x

2x² + 3x + 10x + 15 Now you can factor them out separately

x(2x + 3) + 5(2x + 3) You can factor out (2x + 3) from x and 5 to get:

(2x + 3)(x + 5)

6 0

3 years ago