Find the Unknown Angles for the Figures

question 21

Short Answer

Find the unknown angles for the figures.
​ ​
Where ​
​ ​

---

Definitions:

Stratified Sampling

A method of sampling from a population in which the population is divided into subgroups, and samples are taken from each subgroup independently.

Representative Sampling

The process of selecting a sample that closely matches the overall population in terms of key characteristics.

Mega-Discount Chain

A large-scale retail store or series of stores offering significant discounts on a wide range of merchandise to attract a broad customer base.

Cluster Sampling

A sampling technique where the population is divided into clusters, and a sample of these clusters is then selected for analysis.