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1. Given that ÐG is a supplement of ÐH, and mÐG is 82°, what is mÐH? 98 2. Given that ÐG is a complement of ÐH, and mÐG is 28°, what is mÐH? 62 3. ÐT and ÐS are supplementary. The measure of ÐT is half the measure of ÐS. Find mÐS. 120 & 60 4. ÐT and ÐS are complementary. The measure of ÐT is half the measure of ÐS. Find mÐS. 60 & 30 5. ÐT and ÐS are supplementary. The measure of ÐT is two times the measure of ÐS. Find mÐS. 60 & 120 5- Minute Check
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Find perimeter, Circumference & Area Section 1.7
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Standard 3: Students will understand geometric concepts and applications. Objectives: Find the perimeter, circumference and area of common plane figures. Use a general problem-solving plan. Mastery is 80% or Better on 5-Minute Checks Standards/Objectives:
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PP erimeter P=2 l +2 w AA rea A= lw Rectangle l (length) W (width)
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PP erimeter- 11 deminsional P=4s AA rea 22 deminsional A=s 2 Square S (side)
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PP erimeter P=a+b+c AA rea A= ½ bh Triangle b (base) h (height) ac
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DD iameter d=2r CC ircumference C=2πr AA rea A=πr 2 Circle diameter r a d i u s ** Always use the π button on the calculator; even when the directions say to use 3.14.
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Compare and Contrast the differences and similarities between Perimeter and Circumference. Pair Share
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PP =2 l +2 w P=2(5in)+2(3in) P=10in+6in P=16in AA = lw A=(5in)(3in) A=15in 2 Example: Find the perim. & area of the figure. 3 in 5 in
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PP =4s P=4(20m) P=80m AA =s 2 A=(20m) 2 A=400m 2 Ex: Find the perimeter & area of the figure. 20 m
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PP =a+b+c P=5ft+7ft+6ft P=18 ft AA = ½ bh A= ½ (7ft)(4ft) A= ½ (28ft 2 ) A= 14ft 2 Ex: Find the perimeter & area of the figure. 7 ft 5 ft 4 ft 6 ft
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How do you find the height of a triangle to find area? Does the slant height differ from the regular height? Explain a situation where this might be the same. Quick Write
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CC =2πr C=2π(5in) C=10π in C≈31.4 in AA =πr 2 A=π(5in) 2 A=25π in 2 A≈78.5 in 2 Ex: Find the circumference & area of the circle. 1 0 i n
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Standard 3: Students will understand geometric concepts and applications. Objectives: Find the perimeter and area of common plane figures. Use a general problem-solving plan. Mastery is 80% or Better on 5-Minute Checks What was the Objective(s)?
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Quiz tomorrow over 1.4, 1.5 & 1.7 Page 52 # 2-30 Even On Your Own
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