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Chapter 13-2A 15. Find the cost of carpeting the following rectangular rooms: a) 6.5 m * 4.5 m; cost = $13.85>m2 b) 15 ft * 11 ft; cost = $30>yd2 a) 11 . 405 85 . 13 25 . 29 25 . 29 5 . 4 5 . 6 2 = = = = Cost m A b) 4950 30 165 165 11 15 2 = = = = Cost ft A 20. Find the area of each of the following shaded parts. Assume all arcs are circular with centers marked. Leave all answers in terms of 1. The area of the entire circle is 4 and the area of each small circle is => The area of the shaded part is 4 - 2 = 2 2. The area of the triangle (2*2)/2 = 1 cm and the are of semicircle is 2 => The area of the shaded part is (1 + 2 ) cm 3. The area of the entire circle is 4 and we can observe that the entire circle is shaded by half ( if we switch the shaded part with the part that is not shaded) => The are of shaded part is 2 4. The area of the shaded part is 45.6cm Assessment 13-3A 13.A builder needs to calculate the dimensions of a regular hexagonal window. Assuming the height hexagonal window.... View Full Document