七年级数学期末试题(国外英语资料).docVIP

七年级数学期末试题(国外英语资料) Fill in the blanks: The coefficient of 1, is the number of monomials. 2, (1) (2) (3) 3, when x=, there is the maximum value, the maximum value is As shown in Figure 4, (1): AB, CD line intersect at point O / AOC=54 / 1 / 2 degrees, 10 degrees less than, Then the angle 1= degrees angle 2= degrees 5, as shown in figure (2): ABC = known Delta Delta EBF, AB t CE, ED t AC / A=24 degrees Is (1) AB=, BC= / C= / EFB= degrees degrees (2) if AB=5cm, BC=3cm, then AF= 6, as shown in figure (3); OC AB group, OD group of pedal is O, OE / AOD= / AOD, then, is the complement of Supplementary angle COD is (1) (2) (3); 7, a delta ABC, if the two angle ratio was 2:3, the maximum angle is equal to the degree 8, a wooden rod about 12.35 meters long, if accurate to 0.1 meters for, if accurate to 10 meters, the result is 9, a rectangular circumference of 20 cm, then it is x cm long and Y cm wide relationship between 10, there are 10 balls in a box, and the probability of touching the red ball is that there is a red ball in the box. If there are 3 red balls in the box, there is no red ball, so that the probability of touching the red ball is 11, the known side of the isosceles triangle is equal to 5, while it is equal to 6, the circumference is _______________. 12, Xiao Ying Xiao Ming is 30 degrees east of the north, then Xiao Ming saw Xiao Ying, its direction is 13 / 1, 2 / 2 complementary angle, and proposed 3 complementary angle 1=63 degrees, then angle 3= A note 14, put a piece of A, B, C, D, E, 1, 2, 3, 4, 5 letters and numbers on the flat on a table in front of the mirror, the mirror is a note on the letters and numbers are not change. 15, a 3N cm 5 cm of rectangular paper folded into 3 cm, 5 cm accordion, so that this piece of paper altogether Theres a crease in it 16, as shown in figure 1: 1 / 1= / 2 dreams, the reason is _____ _____ R, ___________ _____. The AB DC dreams, w / 3= / _______, the reason is ____________ _____. The AD BC dreams, w / ABC+ / =180 degree