Find the area of shadow part in the second volume of mathematics in grade six - Training Enrollment Network

Find the area of shadow part in the second volume of mathematics in grade six

Shadow area = left triangle+right quarter circle-left eighth circle-right isosceles right triangle

Left triangle = this parallelogram ÷2=4x4÷2=8cm?

Quarter circle area =4? x3. 14÷4= 12.56cm？

Left eighth 1 circle area =4? x3. 14÷8=6.28cm？

Right isosceles right triangle area =4x4÷2=8cm?

The final shadow area =8+ 12.56-6.28-8=6.28cm?

Related articles

My PE teacher's comment is 1500 words.

Do more math problems

What is the bonus line for the college entrance examination? How to add it? Through what competition? (Shanghai area)

Tang Jiafeng's main works

How many episodes are there in the wisdom kingdom mathematics series?

Qingyang district Pratt & Whitney kindergarten charge

Can I bring information in for the interview of junior high school mathematics with teacher qualification certificate? How did it go today? Please ask an experienced person to explain the process, tha

Is it a psychological problem to hate learning math?

Is the College of Education of Nanjing Normal University the same as the College of Teacher Education? What's the difference between them?

35 1 mathematical answer