Question

The disc brake in a car is a flat metal ring 22cm in diameter with 6cm diameter hole in the middle.Calculate the area of the metal?​

Answer 1

Answer:

Step-by-sSection 3 provides additional resources for the Chapter and Term revision tests found

in the Student’s Book. The Chapter and Term tests have been recreated into easy to

print test sheets that you can use for formal assessment with your class.

The answers to the Chapter and Term tests were not given in the Student’s Book

answer section, so you can conduct your assessments knowing that the students can’t

copy the answers from their Student’s Book.

There are four subsections:

1 chapter revision test sheets for printing

2 answers to the chapter revision tests

3 term revision test sheets for printing

4 answers to the term revision tests.tep explanation:

Answer 2

1406.72cm2

calculate area of outer ring and then subtract area of inner ring