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Sep 08, 2019 · In the figure, AB and CD are two diameters of a circle (with centre O) perpendicular to each other and OD is the diameter of the smaller circle. If OA = 7 cm, find the area of the shaded region. Solution: Ex 12.3 Class 10 Maths Question 10. The area of an equilateral triangle ABC is 17320.5 cm 2. With each vertex of the triangle as centre, a ... How to find the value of x in algebra
Hello sir, please explain the questions that follow: 1) Find the width of the race track which is of a ring shape if the inner circumference is 528m and the outer circumference is 616m. 2) A wire is in the form of a square of side121cm.It is cut and made into the shape of a circle.Find the diameter of the circle.

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The diameter is composed of two collinear rays; its length is 2r; A disc is a region of the plane bounded by a circle; A circular sector is a part of the disk between two radii; An angle in the center is an angle formed by two rays of the circle; The circumference is the perimeter of the circle and is equal to 2*pi*r.

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Calculate the perimeter of a parallelogram using our Perimeter Calculator, or try calculating it yourself with the formulas provided. Geometry Calculator Enter the base and side of the parallelogram in the calculator below to calculate the perimeter of the parallelogram.

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Dec 04, 2020 · But the definition for circumference is the perimeter of a circle So, whichever you prefer to call it let’s look at how you find it. To find the circumference of a circle you multiply the diameter of the circle times pi. Alright, now on to area. When we were looking at the perimeter of different shapes we were able simplify the formulas.

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If the perimeter of semi-circular protactor is 7 2 cm. Find its area. View Answer If the perimeter of a semi-circle protractor is 3 6 c m , find its diameter.

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Perimeter of Sector of Circle Calculator. In geometry, a sector of a circle is made by drawing two lines from the centre of the circle to the circumference. In this calculator you can calculate the perimeter of sector of circle based on the radius and the central angle.

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The amount of fence needed to enclose the backyard (perimeter) is 1-dimensional. The perimeter of this yard is the distance around the outside of the yard, indicated by the red arrow; It is measured in linear units such as feet or meters. To find the perimeter of a polygon, take the sum of the length of each side.

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Jul 03, 2019 · You can calculate the circumference of any circle if you know either the radius or diameter. The formulas are: C = πd C = 2πr. where d is the diameter of the circle, r is its radius, and π is pi. So if you measure the diameter of a circle to be 8.5 cm, you would have: C = πd C = 3.14 * (8.5 cm) C = 26.69 cm, which you should round up to 26.7 cm

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1). The ratio between the length and breadth of a stadium is 5 : 3 and its perimeter is 256 metres. What will be the cost of leveling the ground of the stadium at the rate of Rs.2.50 per sq. metre.

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So the diameter of the circle is equal to 18.38 and now we can find the radius "r" of the circle by dividing its diameter by 2 as shown below: Radius of the circle r = 18.38 ÷ 2 = 9.19 cm. Once you know the radius "r = 9.19", use it in the formula to find the area of a circle to solve the problem. Area of the circle A = pi x rad. x rad.

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Find the circumference and the area of a circle with diameter 7 cm. Use the value 3.14 for pi, and do not round your answers. Be sure to include the correct units in your answers.