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3 years ago

15

Help what’s the perimeter?

1 answer:

KonstantinChe [14]3 years ago

7 0

Answer:

2.8

Step-by-step explanation:

From the similarity ratio we can calculate the missing side length for the smaller rectangle

and when we add all side lengths the answer is 2.8

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iragen [17]

Student A is wrong and Student B is correct.

How?

Direction is saying to construct a line that passes through C
The last step is enough to describe that A is wrong.
Its saying to swing an arc(Should be line).
On the other hand Student B has done correct
By passing point through C and G it satisfies our required construction.

3 0

2 years ago

In triangle pqr PQ is equals to PR and angle Q is equals to 80 degree find angle p

Dmitry [639]

Answer: ∠P= 20°

<h3>Step-by-step explanation: Well we know that the sum of a triangle always equals to 180°, so ∠P + 80 +80 = 180° </h3>

∠P + 160 = 180

Subtract 160 from both sides, 160 on the left is cancelled so that 180-160 equals 20

∠P=20°

6 0

2 years ago

The diagram shows a sector of a circle radius 10cm

Yuki888 [10]

Answer:

$\text{Perimeter of sector = 43.6 (Rounded to the nearest tenth.)}$

Step-by-step explanation:

$\text{Perimeter of the sector = Radius + arc length + radius}$

$\text{Radius = 10 cm}$

$\text{Perimeter of the sector = 10 + arc length + 10 }$

$\text{Perimeter of the sector = 20 + arc length }$

$\text{arc length = (sector angle/ 360 ) * perimeter of the circle}$

$\text{Perimeter of a circle }=2\pi r$

$\text{sector angle} = 135$

$\text{arc length} = (135/ 360 ) * 2\pi (10)$

$= (3/8) 20\pi$

$= 15\pi /2$

$\text{Using }\pi =3.14$

$= 15 * 3.14 /2$

$= 23.55$

$\text{Perimeter of the sector = 20 + 23.55}$

$= 43.55$

$= 43.6 cm$

$\text{perimeter of the sector = 43.6 cm }$

8 0

2 years ago

8.5(4+3h)-h simplified

nikklg [1K]

Answer:

$34+24.5h$

Step-by-step explanation:

$8.5(4+3h)-h\\\\=8.5(4)+8.5(3h)-h\\\\=34+25.5h-h\\\\=34+24.5h$

4 0

3 years ago

Read 2 more answers

I don’t know the answer to this one

Stolb23 [73]

The answer is A bc there’s three diagrams of 1/4 which is increasing .... so it’s multiplying and the last diagram is 3/4 ..... hopes this helps

8 0

2 years ago