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Figure 1 shows a sector AOB of a circle with centre O and radius r cm. The angle AOB is θ radians. The area of the sector AOB is 11 cm2 Given that the perimeter of the sector is 4 times the length of the arc AB, find the exact value of r.

theta/2pi x2pir = length of ABso therefore simplifying gives... thetar = AB
Perimeter = 2r+thetarequate the answer of 4AB to the perimeter.Solve for theta which eventually give 2/3...

Answered by Tutor460124 D. • Maths tutor

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Outline the reasons for which the charge that ‘he must tax food’ was problematic for Chamberlain’s Tariff Reform campaign?

Chamberlain’s contentious commitment to Tariff Reform in 1903 dominated cross party debate and national political discussion in the years that followed. In his speech at Glasgow , the consequences of prop...

Answered by • History tutor

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What are the principal parts of the verb γιγνωσκω?

γιγνωσκω - γνωσομαι - ἐγνων - ἐγνωκα - ἐγνωσμαι

Answered by Oliver H. • Classical Greek tutor

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Write a 90 word summary of the following passage.

I can use the example exam questions from a revision guide to demonstrate the most effective way to go about answering this question. I would offer my tips on reading the question effectively to show how ...

Answered by • French tutor

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