The perimeter of triangle ABC is 16 cm . If AB= (5 + x ) cm, AC = (2 + x ) cm and BC= 5 cm, find the value of x and hence the actual lengths of ABand AC .View Ans The length of a rectangular field is 20m longer than the width. Find an expression for the perimeter of the field in terms of its width. The parallel sides of a trapezium are 8cm and 12cm respectively. If the distance between the parallel sides is 9cm, calculate its area. Suppose a metal wire is bent to form a semi-circle with a radius of 14 cm. Find; (i) The total length of the metal wire. (ii) The area bounded by the metal wire. A school assembly ground is 30m by 30m. Part of the ground is a concrete rectangle of 25m by 5m, while the rest is grass. Calculate the area of the grass. If the area of a square tomato garden is 361 m2, find its perimeter. Calculate the area of the following figure, if 0 is the centre of the circle and OABC is a square. The length of one side of a square is (8x + 10) cm. If the side lengths of the square are reduced by half, find the equation for the perimeter of the square after changing the length. The area of a rectangular room is 1125 cm 2 . If its length is five times its width, find its perimeter. If a triangle has two equal sides of length x cm each and the third side measures 6 cm more than the length of these congruent sides, write down an equation that represents the perimeter of this triangle. The length of one side of a square is (3x + 4) cm. If the side lengths of this square are doubled, find the equation for the perimeter after changing the length of the square. Find area of the Shaded region Use Calculate the area and the perimeter of the following trapezium: Find the perimeter of a square, if its area is 25 cm2 Draw a circle with center 0 and hence indicate the following: The side of a square carpet is 14 m. If a designer decides to make the largest possible circular carpet; (i) what will be the area of the formed circular carpet? (ii) find the area of the remaining pad of the carpet. A mason wants to design a small room 500 cm by 200 cm. ( i) Draw a diagram of the room at a scale of 1:100 (ii) Calculate the area of the room using the result of (i).
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