56) Shirley buys a piece of remnant fabric that is triangular in shape with a base of length 2 yd and a height measuring 1 2 yd. If the fabric sells for $4 per square yard, how much does Shirley pay for the remnant fabric? 55) A community center wishes to have its courtyard area covered with natural stone pavers. If the installation cost is $12 per square foot, use the diagram below to determine the total cost. 24 ft 40 ft 68 ft Garden area 40 ft Courtyard area R1) Can a triangle have more than one obtuse or right angle? Why or why not? Draw some triangles to help you reach your conclusion. R2) How do the lengths of the sides of a triangle compare with the sizes of the angles in the triangle? 4.4 Volume and Surface Area What are your objectives for Section 4.4? How can you accomplish each objective? 1 Find the Volume of a Rectangular Solid • Write the defi nition of volume in your own words, and draw a few examples. • Write the formula for fi nding the Volume of a Rectangular Solid in your notes. • Complete the given example on your own. • Complete You Try 1. 2 Find the Volume of a Rectangular Pyramid • Write the defi nition of a rectangular pyramid in your own words. • Write the formula for fi nding the Volume of a Rectangular Pyramid in your notes. • Complete the given example on your own. • Complete You Try 2. 3 Find the Surface Area of a Rectangular Solid • Write the defi nition of surface area in your own words. • Write the formula for fi nding the Surface Area of a Rectangular Solid in your notes. • Complete the given example on your own. • Complete You Try 3. Read the explanations, follow the examples, take notes, and complete the You Trys. 318 CHAPTER 4 Basic Geometry Concepts and Algebra www.mhhe.com/messersmith
messersmith_power_prealgebra_1e_ch4_7_10
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