Circle with centre point q, has a radius 10 cm. Length of minor arc NP is 20.42cm. What is value of angle NQP

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

What is the length of the unknown leg in the right triangle ?

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab