(10+6)x 10÷2=80 square centimeters.

Large text area:

10x 10= 100 cm2

Areas larger than b:

100-80=20 cm2

Question 2: The sixth grade elementary school plane geometry olympiad 1. The sum of two small triangles with known areas is a large triangle with an area of 2+6=8, so the height-to-height ratio of the triangle with an area of 6 is 8:6=4:3 (the bottom is the same), and the height ratio of the upper triangle to the lower triangle is 1:3. Because they are similar triangles, the upper and lower soles are the same.

xy=2*6= 12

Trapezoidal area (upper bottom+lower bottom * height/2) = (x/3+x) * (4 * y)/3/2 = (1+1/3) 4xy/3/2 = 4/3 * 4 */kloc-0.

2. I can't tell C from D. The total middle area is 2*(A+B)= 120, and the lower triangle is similar to 1. From the triangle, we can know that the area ratio with A is 1:9 (similar edge position is 1:3), so the area is 4, and the number on the left.

Question 3: Is it really that hard to love someone? It's hard to fall in love with safety because there are viruses.

It is also difficult to fall in love with viruses, because it is illegal.

Security and virus pages can only be answered in this way, hehe.

Question 4: Mathematical Geometry Map of the Sixth Grade in Primary School

Question 5: Sixth-grade geometry proof Olympic Games question: Due to the incomplete conditions and lack of conditions, it is impossible to answer normally.

Question 6: The plane geometry of the sixth grade in primary school 100 (note: the result is 7/30).