Swallow, the new lesson standard accompanies me to learn the answers every day

The area inside = 2 (5 * 4 + 5 * 3 + 4 * 3) = 94 square decimeters.

Outside area = 2 (square decimeters.)

A total of square decimeters need to be brushed.

inside s1=2(5*4+4*3+5*3)=94 outside s2=2[(5+

s1+s2=

Therefore, a total of square decimeters need to be brushed.

First drawing unit: 5dm=50cm, 4dm=40cm, 3dm=30cmOuter length: 50+2=52cm Outer width:

40+2=42 Outer height: 30+2=32 (52 42+42 32+52 32) 2+40 50+30 40 2+50 30 2 "The result is calculated by yourself, and the unit is drawn in the end".

Didn't the conditions say that there was a cover?

Swallows build a home in hardship, repeatedly, perseverance, until coughing up blood, exhaustion to death is also unremitting, the sun is always after the wind and rain, the course of life and the road to success is never smooth sailing. We must correctly deal with the hardships and misfortunes in life, set our goals and not relax, work hard with perseverance, and bloom the most beautiful flowers of life in the process of unremitting pursuit.

I want, please send it to my mailbox, thanks.

Tell me. Is it okay to send it to your space? The sooner the better, let me know! thank you！

I want it, please send it to my mailbox, and I'll give you money if it's okay.

1.My father regarded "Farewell" as a song to sing his hometown.

2.I recognized Uqiu as a swallow.

19.Highlight that after knowing the truth, I realized my father's mood at that time.

20.I ask questions and get answers when they are answered. I can feel my father's disappointment.

21.In fact, there is no need to ask questions to others, and we have already understood our mistakes in our hearts, although sometimes, on the road of life, we should face all the truths; Sometimes, however, we can keep some small beautiful mistakes, the kind of mistakes that are harmless and indisputable to others, but can bring us very deep comfort.

My father has always been a "Farewell", which is written outside the Changting Pavilion as outside the Great Wall.

2.I think of Ooqiu as a swallow.

19.Highlighting the discovery of errors is my mental activity.

20.found that he had always regarded Wuqiu as a swallow and walked quietly 21A beautiful mistake, a mistake that is harmless to people and indisputable to the world, but can bring us very deep comfort.

The older swallow saw the man at the table quietly going about his work, flew around for a few more minutes, and then came to rest on the window opposite my desk. The "man at the table" in this sentence is the same person as me. Because there is a sentence in the original text that says:

I moved the table and all the books to the top floor. I was the only one throughout. So the following appears "The Man at the Table.""Referring to myself.

Let's hand in the homework......It's better to do it yourself, don't always copy it, what you copied is not what you did, so why do it?

I'm going to ask too, it's your turn to ask.

Let the intersection of AD and BG be H

The sum of the internal angles of the pentagonal bcefo.

B+ C+ E+ F+ BOF=540° AHG is the outer angle of HDG.

ahg=∠d+∠g

BOF is the outer angle of OAH.

bof=∠ahg+∠a

bof=∠a+∠d+∠g

a+∠b+∠c+∠e+∠f+∠g=∠b+∠c+∠e+∠f+∠bof=540°

Analysis: According to the properties of the outer angles of the triangle, bqf = a + d + g, and then according to the inner angles of the pentagon and the solution

Answer: Proof : As shown in the figure, let af and bg intersect at the point q, then bqf= a+ d+ g, then a+ b+ c+ d+ e+ f+ g= b+ c+ e+ f+ aqg

b+∠c+∠e+∠f+∠bqf

Proof: As shown in the figure, let af and bg intersect at the point q, then bqf = a+ d+ g, then a+ b+ c+ d+ e+ f+ g= b+ c+ e+ f+ aqg

b+∠c+∠e+∠f+∠bqf

Test center analysis. Test points for this question:

polygon inner and outer corners; The nature of the outer angles of the triangle

Problem analysis: According to the properties of the outer angles of the triangle, bqf= a+ d+ g, and then according to the inner angles of the pentagon, the solution can be obtained

In Figure 1, the circumscribed circle of the pentagram is equal to the radian according to the angle, and the sum is 360 degrees.

Connecting AE, angles A and E are divided into two parts, the left half is the same as above, together with the angle BCDG is the quadrilateral inner angle and 360, the right half of AE and the angle F is the triangle inner angle 180, so a total of 540

Solution: Let AF and DG be handed over to M

Because the angle b + angle c + angle e + angle f + angle bqf = 540 degree angle bqf = angle g + angle qmg

Angle QMG = Angle A + Angle D

So the angle a + angle b + angle c + angle d + angle e + angle f + angle g = 540 degrees.