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Genrish500 [490]
3 years ago
13

The measure of two supplementary angles are in the ratio 4 5 find the degree measures of the angles

Mathematics
1 answer:
Katen [24]3 years ago
8 0
Supplementary angles add to 180
4+5=9

180/9=20

4*20=80
5*20=100
the angles are 80 degrees and 100 degrees
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The lengths of the sides of a triangle are 5, 12, and 13. What is the measure of the angle opposite to the side with length equa
zepelin [54]
Hello,

Since 5²+12²=13² (25+144=169), the triangle is rectangular and 13 is the length of the hypotenuse which opposed angle is a right angle:
answer 90°

6 0
3 years ago
The area of the triangle below is<br> ___ sq. units HELP ASAPPP
deff fn [24]

Answer:

D. 40

Step-by-step explanation:

Area of triangle: A = 1/2bh

We have <em>b </em>and <em>h</em> already, so simply plug it in:

A = 1/2(16)(5)

A = 8(5)

A = 40 units²

7 0
4 years ago
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¿Cuál de las figuras tiene ángulos agudos? A. El triángulo equilátero. B. El cuadrado. C. El pentágono regular. D. El heptágono
Ede4ka [16]

Answer:

A. El triángulo equilátero.

Step-by-step explanation:

Un triángulo equilátero tiene ángulos agudos.

Los ángulos agudos tienen una medida de menos de 90 grados.

La suma de los ángulos del triángulo siempre debe ser igual a 180 grados.

Cuando 3 ángulos son iguales, la medida de cada uno de ellos vendrá dada por

3 veces = 180

x = 180/2 = 60 grados

La suma de los ángulos del cuadrado siempre es igual a 360 grados. Cuando 4 ángulos son iguales, la medida de cada uno de ellos vendrá dada por

4x = 360

x = 360/4 = 90 grados

Un cuadrado tiene cuatro ángulos rectos.

La suma de los ángulos del pentágono siempre es igual a 540 grados. Cuando 5 ángulos son iguales, la medida de cada uno de ellos vendrá dada por

5 veces = 540

x = 540/5 = 108 grados

Un pentágono regular tiene 5 ángulos obtusos.

La suma de los ángulos interiores del heptágono siempre es igual a 900 grados. Cuando 7 ángulos son iguales, la medida de cada uno de ellos vendrá dada por

7x = 900

x = 900/7 = 128,57 grados

Un heptágono regular tiene 7 ángulos obtusos.

Entonces, solo el triángulo equlateral tiene ángulos agudos.

English

An equilateral triangle has acute angles.

Acute angles are having measurement less than 90 degrees.

The  sum of angles of the triangle must always be equal to 180 degrees.

When 3 angles are equal then the measure of each of them will be given by

3x= 180

x= 180/2= 60 degrees

The  sum of angles of square always equal 360 degrees. When 4 angles are equal then the measure of each of them will be given by

4x= 360

x= 360/4= 90 degrees

A square has four right angles.

The  sum of angles of pentagon always equal 540 degrees. When 5 angles are equal then the measure of each of them will be given by

5x= 540

x= 540/5= 108 degrees

A regular pentagon has 5 obtuse angles.

The  sum of  interior angles of heptagon always equal 900 degrees. When 7 angles are equal then the measure of each of them will be given by

7x= 900

x= 900/7= 128.57 degrees

A regular heptagon has 7 obtuse angles.

So only equilateral triangle has acute angles.

5 0
3 years ago
Please help. quickly if possible
e-lub [12.9K]

Answer:

Surface area: 160 Volume: 100

Step-by-step explanation:

8 0
3 years ago
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3. Trudy wants to surround her garden on all four sides with fencing. Her rectangular garden is 270 cm by 130 cm. How many meter
vovikov84 [41]

8 meters of fencing will be required by Trudy to surround her garden on all four sides

Step-by-step explanation:

We need to find the perimeter of rectangular garden.

We are given:

Length = 270 cm

Width = 130 cm

Perimeter= ?

Using the formula:

Perimeter = 2(Length+Width)\\Perimeter = 2(270+130)\\Perimeter = 2(400)\\Perimeter = 800 cm

Since we need to find the fencing in meters  we divide the perimeter by 100

Perimeter = \frac{800}{100}\\Perimeter = 8 meters

So, 8 meters of fencing will be required by Trudy to surround her garden on all four sides

Keywords: Perimeter

Learn more about Perimeter at:

  • brainly.com/question/6594923
  • brainly.com/question/12985572
  • brainly.com/question/8902155

#learnwithBrainly

4 0
3 years ago
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