# the sector aob of a circle is shown

What is the length of DF? 2. A circle is drawn inside the sector, which is tangent to the sides of the sector, as shown. It would hence be right to say that a semi-circle or a quarter-circle is a sector of the given circle. areas related to circles; cbse; class-10; Share It On Facebook Twitter Email. The diagram below shows a sector AOB of a circle of radius 15 cm and centre O. Add your answer and earn points. the area of AOB is . A circle, centre C and radius r cm? there are shown sectors of two concentric circles of radii 7 cm and 3.5 cm. [6] The circle C, inside the sector, touches the two straight edges, OA and OB, and the arc AB as shown. PLEASE explain all of this (why you add here, why you need this formula etc). a.) The diagram shows a sector of a circle radius 10 cm. b. its innermost energy level. t-shirt to reach its maximum? The shape shown in Figure 1 is a pattern for a pendant. Find i. b. area of a sector depends on the ratio of the central angle to the entire circle. If AP OB and AP = 15 cm, find the area of the shaded region. 56/3.5 = 16. the diagonal is the hypotenuse. asked by abigail on September 20, 2016; Maths. Write down, in terms of R and r, the length of OC. The point C lies on OB and iss such that AC is perpendicular to OB. Question: A) The Diagram Below Shows A Sector AOB Of A Circle With Center O And Radius R сm. The angle AOB is 540. perimeter of the sector is 60 cm. a? Find: (i) the total length of the silver wire required (ii) the area of each sector of the brooch. The sector is folded so that the straight The length of its arc AB is 811 cm. [2] (ii) Find the perimeter of the shaded region. The line AB is a chord of the circle and angle AOB = 2.4 radians. In Figure 3, OACB is a sector. AOB is a sector of a circle such that angle AOB=60 degrees Celsius and OB is r units long. 2 2 5 π c m 2. Calculate the area of the shaded region. We have, A B = 5 3 ⇒ A L = B L = 2 5 3 Let ∠ A O B = 2 0. game, a sling shot launches? The piece OABCD is a minor sector of a circle with centre O and radius. The following diagram shows a circle of centre O, and radius 15 cm. Area = 1.5r^2/2 = 192cm^2 Tom had a platter of chocolate wafers. what is the range of the function that models the height of the? t-shirt is launched from a height of 5 feet with an initial upward velocity of 72 feet per second. this is torturing the definition of length and width a bit. Adetunmbiadekunle Adetunmbiadekunle Answer: The perimeter is 43.6 cm. The shape shown in Figure 1 is a pattern for a pendant. [4] AOB –, , . a^2 + b^2 = c^2   where a and b are the legs and c is the hypotenuse, since c has to be positive since it is a length. 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. | MyTutor Figure 1 shows a sector AOB of a circle with centre O … Angle AOD is radians. Click hereto get an answer to your question ️ The figure shows the cross - section of the railway tunnel. In this video, I explain the definition of a sector and how to find the sector area of a circle. How to Calculate the Area of a Sector of a Circle. Cm 72° I) Express 72° In Radian. The area of triangle DEF is 32√3 square units. the width and the lengths are the legs of the triangle. if an hour has 60 minutes and a minute has 60 seconds, how many seconds are there in 1 year? D. None of these. Explanation: Radius 9 cm. The rest is in asymptote size (100) ; // Not to The segment R, shaded in the diagram above, is enclosed by the arc AB and the straight line AB. The diagram shows an isosceles triangle AOB and a sector OCDEO of a circle with centre O. AC and BD are diameters of circle E. Which triangle congruence theorem can be used to prove triangle AEB is congruent to triangle DEC? The area of the circle is Pi x r^2, and there are 2 x Pi radians in a full 360 degree circle, so the area of the sector AOB is (0.8 / 2 x Pi) x (Pi x r^2), or 0.4 x 6.5 x 6.5, which is 16.9 cm^2 The central angle is a quarter of a circle: 360° / 4 = 90°. By using this site, you consent to the use of cookies. In the circle with center O above, sector AOB, shaded in gray, is bounded by radii OA and OB, and arc AB. 2 in. By using this site, you consent to the use of cookies. 2) The area of the sector depends on the ratio of the central angle to the entire circle. Area of arc = × 9. I had to look for the figure and here is my answer:Because the circle is attached to this question, the area of the sector AOB is to the of 60 of the fractional part of the area of the circle O. The ultimate source of energy for almost all living organisms is a. animals. (Use π = 22/7 ). There are three times as many girls lacrosse players as there are basket ball players at commodore. Area of a circle = (pi)*r^2. If y varies directly as x and y=27 when x=32, find y if x=33.... How did the conquistadors establish the spanish empire in the americas... Mark made 7 withdrawals of $75 each from her bank account. ��������� =2×12.6+ (12.6)=31.7 solves to give =0.5159 ������� Area sector (= 1 2 0.5159)(12.62)=41.0 Hits: 3124 Question The diagram shows a sector of a circle with radius cm and centre . Figure 3 A sector of a circle. Determine which value is a solution to the open scentence. Find the area of a sector of the circle if the sector has an arc that measures 45°. Figure 1 shows a sector AOB of a circle with centre O and radius r cm. A day has 24 hours × radius of the arc AB as shown concentric... Answers: ( i ) find, in terms of pi in its simplest form See answer shaziya67 is for... Figure 1 is a straight line 3 times its supplement by 4. find the of. 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