Welcome to your Area and Perimeter of Plane Shapes(Study by Topics Junior Class) NAME EMAIL PHONE NUMBER 1. Calculate the area of a circle whose diameter is 7 cm. 44 cm² 38.5 cm² 154 cm² 22 cm² 38 cm² None 2. Calculate the area of a circular field of diameter 6 m, correct to 2 s.f. (Take π = 3.14) 28 m² 29 m² 112 m² 9.4 m² 28.3 m² None 3. Consider the isosceles trapezoid PQRS. The bases are |PQ| = 120 mm, |RS| = 62 mm and the arm s = 48 mm. Find the height of the trapezoid, diagonal length and the area of the trapezoid h = 38.25 mm, d = 98.71 mm, A = 3,480.68 mm² h = 58.22 mm, d = 8.71 mm, A = 3,480.68 mm² h = 38.25 mm, d = 98.71 mm, A = 5,480.68 mm² h = 77.25 mm, d = 91.15 mm, A = 380.53 mm² None 4. Calculate the area of the triangle drawn below. 14 cm² 20 cm² 54 cm² 40 cm² 25 cm² None 5. Find the perimeter of a rectangle of sides (a + 2) and (a - 2). a + 4 4a 2a - 4 4a - 8 2a None 6. Find the perimeter of a circle if its area is 706.5 cm2. 121 cm 45.7 cm 53 cm 94.2 cm None 7. If the area of a circle is 154 cm², what is the diameter of the circle? 7 cm 14 cm 30 cm 28 cm 21 cm None 8. Lengths of the sides of a rectangular garden are in the ratio 1 : 2. Line connecting the centers of the adjacent sides of the garden is 20 m long. Calculate the perimeter of the garden. 56√7 m 48√5 m 12√5 m 65 None 9. Calculate to the nearest whole number the perimeter of a circle whose radius is 6cm. 36 cm 38 cm 39 cm 37 cm None 10. A perimeter of a parallelogram is 2.8 meters. The length of one of its sides is equal to one-seventh of the entire perimeter. Find lengths of the sides of the parallelogram. a = 0.4 m, b = 1 m a = 4 m, b = 1.5 m a = 1.4 m, b = 1.9m a = 0.7 m, b = 2 m None 11. The area of a trapezium ABCD is 156 cm². If the parallel sides are 17 cm and 35 cm respectively, what is the height of the trapezium? 9 cm 5 cm 6 cm 4 cm None 12. A right-angled triangle ABC has the legs a = 5 cm, b = 8 cm. A triangle A'B'C' is similar to the triangle ABC and it is 2.5 times smaller. Calculate what percentage of the area of the triangle ABC takes the area of the triangle A'B'C'. 16% 23% 75% 7% None 13. A land of a right-angled trapezoid shape has the bases lengths of 92 m and 76 m and the vertical arm is 6.3 m long. Find the land area and the length of a fencing needed to fence the land. A = 342 m², P = 19 m A = 12.2 m², P = 91.5 m A = 529.2 m², P = 191.5 m A = 29.4 m², P = 194 m None 14. A square field has a perimeter of 48 m. Find the area of the field. 96 m² 12 m² 48 m² 24 m² 144 m² None 15. Find the area of a parallelogram whose base and height are 46 cm and 12 cm respectively. 552 cm² 276 cm² 116 cm² 58 cm² None 16. A perimeter of an isosceles triangle is 474 m. The base of the triangle is by 48 m longer than the arm. Find the length of the sides and the area of the triangle. a = b = 112 m, c = 14 m, A = 15,026.44 m a = b = 142 m, c = 142 m, A = 2,026.44 m a = b = 142 m, c = 190 m, A = 10,026.44 m a = b = 142 m, c = 12.4 m, A = 16,026.44 m None 17. A square has a perimeter of 24 cm. Find its area in cm². 72 cm² 96 cm² 24 cm² 48 cm² 36 cm² None 18. Calculate the perimeter of a football field which measures 60 m by 40 m. 200 m 20 m 100 m 120 m 2400 m None 19. A right-angled isosceles triangle has the area of 32 cm2. What is its perimeter ? 27.31 cm 22.1 cm 12 cm 35 cm None 20. On the picture two and another two semicircles are identical. The radius of one semicircle is twice as large as the radius of the other semicircle. Find the area of the colored pattern if |AB| = 12 cm. 45 cm² 25 cm² 37.7 cm² 57.7 cm² None 1 out of 20 Time's upTime is Up!