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aniked [119]
3 years ago
11

A triangular playground has angles with measures in ratio 8: 3: 9 what is the measure of the smallest angle

Mathematics
2 answers:
maria [59]3 years ago
7 0
8x + 3× + 9x = 180

20x = 180
x = 180/20
x = 9

The smallest angle is: 3×9 = 27 degrees

Note: 180 degrees is the sum of angles in a triangle
Stolb23 [73]3 years ago
6 0

Answer:

The measure of the smallest angle is 27°

Step-by-step explanation:

The triangle has angles with measure ratio 8:3:9, so the sizes of the angles are going to change depends on the ratio.

Let’s name the common value as “α”.

Basing on the angle-sum property, we already know that the sum of the angle in a triangle is 180°.

The measure of each one are:

8α, 3α, 9α

The sum of these is 180°.

Then,

8α + 3α + 9α = 180°

Let’s sum similar values:

20α =180°

α= 180°/20

α= 9

Replacing values, we going to find the measure of each angle:

8(9) = 72°

<u>3(9) = 27° </u>

9(9) = 81°

The measure of the smallest angle is 27°

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Answer:

8f-16g

Step-by-step explanation:

-1×f(-8) -4×g(4)

-1×-8f -4×4g

8f -16g

Hopes this helps

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1 year ago
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hichkok12 [17]
A. Area of ABCD - Area of DGA = Area of DEFG
s^2 - 1/2bh = s^2
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25 - 1/2(12) = 9
25 - 24 = 9
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B. Area of ABCD - Area of GHIA = Area of DGA
s^2 - s^2 = 1/2bh
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D. Area of DEFG + Area of GHIA = Area of ABCD
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9 + 16 = 25
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The answer is D.
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3 years ago
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Can someone double check that this is correct? If not please correct me :)
bija089 [108]
Yeah you are correct, also I need brainlest please
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