Answer 120
2. The distance between the two right-angle vertices of the right-angle trapezoid and the midpoint of the opposite waist ()
A. unequal
C. it may or may not be equal. This is impossible to compare.
Answer a
3. Among the following propositions, the correct one is ()
Two quadrilaterals with equal diagonals are parallelograms.
Two quadrangles with equal diagonal lines and perpendicular to each other are rectangles.
A quadrilateral with two diagonal lines bisecting each other vertically is a diamond.
A quadrilateral with two diagonal lines bisecting each other and being equal is a square.
Answer c
4. If the diagonal length of a square is 2 cm, then the area of this square is ().
A.4 B.2 C. D
Answer b
What is the title of the fifth question on page 73 of the second volume of mathematics supplementary exercise in grade four?
The answer to the third question on page 46 of the second volume of the sixth grade mathematics supplementary exercise is the first question.
( 12+8)x2
=20x2
=40 meters
second
20x3. 14=62.8 (decimeter)
The answers on page 16 of the second volume of the sixth grade mathematics supplement are all in different versions. What's your specific topic?
The answer on page 46 of the second volume of the sixth grade math make-up exercise is the same as our math make-up exercise. They are all done at school, and sometimes they are taken home to do, but I don't have them now. You'd better type the question.
The answers on pages 55, 56 and 57 of the second volume of supplementary exercises in mathematics for grade six, hehe,
One piece1.9,6
2. One sixth and five sixth
3. One seventh
Two. Two fifths, three sevenths, nine fifths and six sevenths.
Three. 492/500=0.984=98.4%
4 5000/500= 10%
V 53 53 53/53= 100%
P56
One. 1000 0.3 3 7/ 1 1 1/ 10 3/2 0 7/8 0.008
Two. Industrial and Commercial Bank of China
Three. 1。 146 2.48 3. 14.28
Four. 1、438 18.62 1402 196.8 13 16896.8
2、 1.708 0.488 0.389
Verb (abbreviation of verb) 600 4200
P57
1, 1/2/3/4=2/3 (hectare)
3/4/ 1/2=3/2 (hours)
2, 24* 18=432 (person)
scanty
3、 1/8= 1/8 1/5= 1/5 1/8/ 1/5=0.625=62.5%
4, 2000 *3.87%=77.4 (yuan)
77.4*0.05=3.87 (yuan)
77.4-3.87=73.53 (Yuan)
5.( 1)420*0.85=357 (yuan)
(2)289/0.85=340 (yuan)
This is the Soviet version. .
The answer is 1 on pages 85, 86 and 87 of supplementary math exercises in the second volume of the sixth grade. There are 99 refrigerators and 25 heaters/kloc-0. Draw this picture yourself. (3), (1) The heaters sold in January are the most, and (3) the refrigerators sold in March are the most. (4) How much is the heater more than the refrigerator? 80-35 = 45 (Taiwan Province) Answer ``````.2, the mode is 20, the average is 16, and the median is 18.5(2) It should be expressed by the median (85 pages).
Last night, the grandmother on the first floor knocked on my door with a fresh fish and said with a smile, "Will she die?" The old man just caught it and was still jumping. Let's make soup for the children ... "
"Oh, grandma ... this, this how not bashful ..." I said with an embarrassed smile.
"But I didn't kill fish ... or you cooked ..."
"Then I'll kill it first and then bring it back ..." The old woman has a kind face.
The first answer on page 78 of the second volume of supplementary exercises in mathematics for the sixth grade of the teaching press, the volume is 1200 and the surface area is 700.
Volume 1000 surface area 600
Volume 602.88 surface area 40 1.92
Ii 1 17.68
The third (1) area 32. 185 needs 643.7 yuan.
(2) 15.7 tons
(The teacher has approved it, which is absolutely correct) ~ ~ ~
The answer is 1 on page 76 of supplementary exercises in mathematics in the fifth grade of primary school. The answer to the first question is (1):113.04 (2): 7.74 (3): 9.5325. Write your own formula.
2. (1)16/2 = 8 3.14 * 8 * 8 = 200.96 (square centimeter) (2) 20 *16 = 320 320-200.96 =/.
3.30/5 = 6 10/2 = 5 3. 14 *(225-25)= 628(cm2)
This is all the answers on page 76 of the second volume of Grade Five.