The perimeter of the sector oab shows in
Webb20 feb. 2024 · Thus, The perimeter of the sector OAB is 64 cm. Now, We have to find the area of sector OAB. We know that, Subsitute the required values in the above formula : … WebbAlgebra questions and answers. 3 point QUESTION 12 The diagram shows a sector of a circle, centre O. The radius of the circle is 6 cm. The angle at the centre is 120° Work out the perimeter of the sector. Give your answer in centimetres) in terms of it in its simplest form, 6 cm 6 cm 120 A 12 +21 B. 12 +240 OC 12+1270 OD. 12 +41.
The perimeter of the sector oab shows in
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WebbThe diagram shows a sector OAB of a circle, centre O and radius 8 cm. The angle AOB is 46 . [2] [2] (i) (ii) (iii) Express 460 in radians, correct to 3 significant figures. Find the length of the arc AB. Find the area of the sector OAB. 8 cm 1.7 rad 0.8 rad Il cm The diagram shows a triangle ABC, and a sector ACT) of a circle with centre A. Webb25 dec. 2024 · Angle AOB is θ radians. The point C on OA is such that BC is perpendicular to OA. The point D is on BC and the circular arc AD has centre C . (a) Find AC in terms of …
Webb4. The diagram shows a semicircle ABC with centre O and radius 8 cm. Angle AOB = radians. (i) In the case where BOC = 1, calculate the area of the sector . [3] (ii) Find the value of for which the perimeter of sector AOB is one half of the perimeter of sector BOC. [3] (iii) In the case where , show that the exact length of the perimeter of triangle Webb3 aug. 2015 · The following diagram shows a sector of a circle of radius r cm, and angle at the centre. The perimeter of the sector is 20 cm. (a) Show that = r 20 2r. (b) The area of the sector is 25 cm2. Find the value of r. (Total 6 marks) 4. (a) For using perimeter = r + r + arc length (M1) 20 = 2r + r A1 r 20 2r AG N0 (b) Finding A =
WebbYou must show all necessary working clearly. Give non-exact numerical answers correct to 3 significant figures, or 1 decimal place for angles in degrees, unless a different level of accuracy is specified in the question. For r, use either your calculator value or 3.142. INFORMATION The total mark for this paper is 130. Webb9 dec. 2024 · Hence the perimeter of the sector is 25.9 cm.. The perimeter of a sector with a central angle (θ) is given by:. Perimeter = (θ/360) × 2πr. Where r is the radius of the circle and θ is the central angle.. From the diagram attached, θ is 135°.Hence, the area of the sector is: Perimeter = (θ/360) × 2πr Perimeter = (135/360) × 2π(11) Perimeter of sector …
Webb26 juli 2024 · Sector, segment and arc - Higher only Sometimes we need to know how to calculate values for specific sections of a circle. These can include arc lengths, the area …
WebbThe diagram shows a sector of a circle of radius 12.6 cm. Given that the perimeter of the sector is 31.7 cm, find its area. 2 O 7.3 cm A B The diagram shows a sector OAB of a circle, centre O and radius 7.3 cm. Given that the area of the sector is 38.4 cm2, find a the size of ∠AOB in radians, b the perimeter of the shaded segment. 3 r cm flies in the wineWebbThe angle of a sector in a given circle is 40 degrees and the area of the sector is equal to 20 cm 2. Calculate the arc length of the sector. Solution to Problem 2: The formula for the area of a sector is. Area = (1 / 2) * angle of sector * r 2. The area and the angle are given. The angle is given in degrees and has to be converted into radians ... flies in the vasolineWebbThe diagram shows a sector OAB of a circle with centre O and radius r cm. r cm O A B 1.5c r cm The angle AOB is 1.5 radians. The perimeter of the sector is 56 cm. (a) Show that r = 16. (3) (b) Find the area of the sector. (2) (Total 5 marks) 4. The diagram shows a triangle ABC. The lengths of AC and BC are 4.8 cm and 12 cm respectively. flies in the officeWebbThe following diagram shows a sector of a circle of radius r cm, and angle θ at the centre. The perimeter of the sector is 20 cm. (a) Show that θ = . (b) The area of the sector is 25 cm2. Find the value of r. (Total 6 marks) 7. The diagram below shows a circle centre O, with radius r. The length of arc ABC is 3π cm and = chem eng 3035 fluid \u0026 particle mechanicsWebb[Edexcel GCSE June2016-2H Q22] OAB is a sector of a circle, centre O. OCD is a sector of a circle, centre O. OCA and ODB are straight lines. Angle AOB = 75° OD = 6 cm DB = 4 cm Calculate the perimeter of the shaded region. Give your answer correct to 3 … chem eng 3034 chemical reactor engineeringWebb9 juni 2014 · The angle POQ is θ radians and the perimeter of the sector is 20 cm. (i) Show that θ = 20 − 2. r [2] ... In the diagram, OAB is a sector of a circle with centre O and radius 12 cm. chem eng 2010 process design iiWebbQuestion. Click here for a printable PDF of this question. 12) OAB is a sector of a circle with centre O and radius 7 cm. The area of the sector is 40 cm 2. Calculate the perimeter of the sector. Give your answer correct to 3 significant figures. [4 marks] . chem eng 3035 fluid \\u0026 particle mechanics