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leonid [27]
3 years ago
6

I don’t know how to do these please help

Mathematics
1 answer:
valentinak56 [21]3 years ago
7 0
35) that external angel is the 2 given angles added together (30 + 80 = dba)

36) same property (110 = 40 + x)

37) same property ( (x-20) + (3x-60) = 2x + 20)

40) I dont know either but I'm pretty sure that the type of angle that x is determines the triangle.
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Gekata [30.6K]

Answer: 2

Step-by-step explanation: lol

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7. If the longer leg of a right triangle is twice as long as the shorter leg, what is the ratio of
kicyunya [14]

Answer: The ratio is 2.39, which means that the larger acute angle is 2.39 times the smaller acute angle.

Step-by-step explanation:

I suppose that the "legs" of a triangle rectangle are the cathati.

if L is the length of the shorter leg, 2*L is the length of the longest leg.

Now you can remember the relation:

Tan(a) = (opposite cathetus)/(adjacent cathetus)

Then there is one acute angle calculated as:

Tan(θ)  =  (shorter leg)/(longer leg)

Tan(φ) = (longer leg)/(shorter leg)

And we want to find the ratio between the measure of the larger acute angle and the smaller acute angle.

Then we need to find θ and φ.

Tan(θ) = L/(2*L)

Tan(θ) = 1/2

θ = Atan(1/2) = 26.57°

Tan(φ) = (2*L)/L

Tan(φ) = 2

φ = Atan(2) = 63.43°

Then the ratio between the larger acute angle and the smaller acute angle is:

R = (63.43°)/(26.57°) = 2.39

This means that the larger acute angle is 2.39 times the smaller acute angle.

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The exterior angle measure of a regular polygon is 20 degrees. How many sides does the polygon have? 9 16 18 20
notka56 [123]
The polygon would have 18 sides. Hope this helps!
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Please help solve these equations! Show steps(: thank you
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Y= x^2-58
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3 years ago
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