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2 years ago

A green cross is formed by placing two rectangles of dimensions 8cm×4cm over

Mathematics

1 answer:

Goshia [24]2 years ago

4 0

Answer:

<em>The perimeter of the green cross is 32 cm</em>

Step-by-step explanation:

<u>Perimeter</u>

It's the sum of all the external side lengths of a given shape.

The green cross formed by two rectangles is shown in the figure below.

We have outlined the dimensions of the external sides of the resulting cross.

Note there are four corners of 2 cm by 2 cm and four sides of 4 cm each.

The total perimeter is:

8 * 2 cm + 4 * 4 cm = 16 cm + 16 cm = 32 cm

The perimeter of the green cross is 32 cm

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Students in Miss Mouseley’s fourth grade class are learning multiplication, and they demonstrate mastery by passing assessments.

Alja [10]

Answer:

3 weeks and they both passed 17 test

Step-by-step explanation:

11+2=13 13=2=15 15+2=17

5+2=7 7+5=12 12+=17

by the third week they will both be equal and passed 17 test :)

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2 years ago

One kilogram of cheese costs £9.68

Alex Ar [27]

6.292

1kg=9.69

1000g=9.68

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2 years ago

Anybody know the answers? A-? B-4 c-12 1/3?

shutvik [7]

Answer:

11.666666-repeated on and on

Step-by-step explanation:

but you can probably round to 11.7

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2 years ago

WILL REWARD THE BRAINLIEST

Gnom [1K]

Answers and Step-by-step explanations:

9-18.

a) All the angles of a triangle add up to 180, by definition. So, we can write the expression: 30 + 115 + x = 180.

Then, we can just solve for x by subtracting 30 and 115 from both sides:

x = 180 - 115 - 30 = 35 degrees

b) Again all three angles should add up to 180, so:

x + x + x = 180 ⇒ 3x = 180 ⇒ x = 180/3 = 60 degrees

9-19.

a) These angles add up to 180:

2x + x + 30 = 180 ⇒ 3x + 30 = 180 ⇒ 3x = 150 ⇒ x = 50

2x = 50 * 2 = 100

The missing angles are 100 degrees and 50 degrees.

b) Again, these add up to 180:

x + 10 + x + 90 = 180 ⇒ 2x + 100 = 180 ⇒ 2x = 80 ⇒ x = 40

x + 10 = 40 + 10 = 50

The missing angles are 50 degrees and 40 degrees.

Hope this helps!

7 0

2 years ago

Read 2 more answers

Plssssss I neeed help I will mark brainlist

svetlana [45]

Answer:

so i think it is rst on the right

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2 years ago