मिलान चिह्नों (tally marks) का उपयोग करके, निम्नलिखित में से कौन सा विकल्प संख्या 8 को दर्शाता है?

In a pie chart, what is the central angle representing 40% of the total value?

In a pie chart, if a sector represents 512 part of the circle, then the central angle of the sector is:

A geometric representation showing the relationship between a whole and its parts is a—