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Light won the eighth grade mathematics volume II page 61 15 questions (Beijing class Revision) please help The side length of square ABCD is 12cm, and there is a point P, BP = 5 on the side BC. Fold the square so that point a falls on point P, and find the length of crease EF
I'm depressed if there's no picture. If it's right, it should be 13
Let's use triangle congruence in the second grade of junior high school. If we make f perpendicular to AB and h, we will have fhe congruence ABP. Prove it yourself
How to solve problem 5 on page 32?
How to solve the seventh problem of the third grade mathematics exercise 8 of PEP
You posted the title,
Eight times to win the championship in Mathematics
As shown in the figure, take points e, D and F on the sides AB, AC and BC of △ ABC, so that the quadrilateral BEDF is a diamond. If AB = 15cm and BC = 12cm, what is the side length of the diamond
Let X be the side length of the diamond
x/15=（12-x）/12
x=6
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