4 years ago

Describe two ways that an exterior angle of a triangle is related to one or more of the interior angles.

1 answer:

4 0

Well, an interior angle plus an exterior angle has to equal 180°. Also, the sum of the interior angles is represented by this formula: [-2 + n]180, whereas the sum of the exterior angles all add up to 360°, and is represented by this formula: 360/n [let "n" represent the number of sides in every polygon].

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PLEASE SOMEBODY ANSWER

Kipish [7]

Answer:

Step-by-step explanation:

2ab cos C=a²+b²-c²

2×31×14 cos C=31²+14²-40²

868 cos C=961+196-1600=-443

cos C=-443/868

C=cos^{-1}(-443/868)≈120.688≈120.69°

by sine formula

m∠B=180-(62+55)=180-117=63°

$\frac{AC}{sin~B} =\frac{AB}{sin~C} \\\frac{240}{sin 63} =\frac{AB}{sin~55} \\AB=\frac{sin~55}{sin~63} \times 240 \approx 220.645 \approx 220.65 ~ft$

5 0

3 years ago

Use calculus to find the largest possible area for a rectangular field that can be enclosed with a fence that is 400 meters long

Setler79 [48]

the largest rectangular area is actually a square.

so the side would be 400/4 = 100 feet

area of a square is S^2

100^2 = 10,000 square feet

6 0

3 years ago

Write the equation of the line that passes through the points (7,7) and (-7, -7). Put your answer in fully reduced point-slope f

choli [55]

I got y=x but I’m not sure if that’s correct

6 0

3 years ago

When a number is increased by 12, the results is equal to twice the number equation

Mila [183]

Let the number be x

x + 12 = 2(x + 12)

x + 12 = 2x + 24

x - 2x = 24 - 12

-x = 12

x = -12

The number is -12.

3 0

3 years ago

Given the first term and the term-to-term rule, write down the first six terms of each sequence.

spin [16.1K]

Step-by-step explanation:

a1 = 2

a2 = a1 + 9 = 2 + 9 = 11

a3 = a2 + 9 = 20

a4 = a3 + 9 = 29

a5 = a4 + 9 = 38

a6 = a5 + 9 = 47

8 0

1 year ago