FREE Trial

The diagram represents a metal plate OABC, consisting of a sector OAB of a circle with centre

Question:

The diagram represents a metal plate OABC, consisting of a sector OAB of a circle with centre O and radius r, together with a triangle OCB which is right-angled at C. Angle AOB = θ radians and OC is perpendicular to OA.


i. Find an expression in terms of r and for the perimeter of the plate.
ii. For the case where r = 10 and θ = 1/5 π, find the area of the plate.

Transcribed Image Text:

с 0 0 rad r Orad B A

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Answer rating: 66% (3 reviews)

i The perimeter of the plate is equal to the sum of the lengths ...View the full answer


answer-question-section
Answered By
tutor-profile-image
User l_917591
As a Business Management graduate from Moi University, I had the opportunity to work as a tutor for undergraduate students in the same field. This experience allowed me to apply the theoretical knowledge I had gained in a practical setting, while also honing my teaching and communication skills. As a tutor, I was responsible for conducting tutorial sessions, grading assignments and exams, and providing feedback and support to my students. I also assisted with the preparation of course materials and collaborated with other tutors and professors to ensure consistency in teaching and assessment.
0.00 0 Reviews 10+ Question Solved
Related Book For  book-img-for-question
Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

ISBN: 9781108407144

1st Edition

Authors: Sue Pemberton, Julian Gilbey

See More Books
Question Posted:
See More Questions

Related Video

The area of a circle is given by the formula: A = ?r^2 Where A is the area, ? is a mathematical constant (approximately 3.14), and r is the radius of the circle. The radius is the distance from the center of the circle to the edge. So for example, if the radius of a circle is 5 units, the area would be: A = ?(5^2) = ?(25) = 78.5 square units Here three friends went out to a restaurant and decided to have pizza for lunch. While they were waiting for their order, one of them stepped out to take a call but promised to return in two minutes. The waiter came and presented them with the menu, and they decided to order two 10-inch pepperoni pizzas. The waiter took their order and left. Just then, the third friend returned and asked what they had ordered. They explained that they had ordered two small pepperoni pizzas as they were only three of them and it would be enough for them. However, the third friend suggested that for the same price, they could get a large pizza that would be much bigger than the two small ones. He asked the waiter for a pen and paper and proceeded to calculate the area of the two small pizzas and compared it to the area of one large pizza. The friends were amazed at how the circle measurements worked and decided to change their order from two small pizzas to one large pizza.

Students also viewed these Mathematics questions

The Perverse Organisation And Its Deadly Sins 1st Edition - ISBN: 1855755769 - Free Book