Grade Nine Lesson 10.1 PDF
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Uploaded by EnergySavingDystopia2236
2024
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Summary
This document is a collection of practice questions on finding the area of parallelograms and triangles. Various examples are provided, along with calculations and diagrams.
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Grade Nine Lesson ( 10.1) Page (619) Objectives Find the area of Parallelograms and Triangles Page (619) Warming up Rectangle Page (619) W or h A=b...
Grade Nine Lesson ( 10.1) Page (619) Objectives Find the area of Parallelograms and Triangles Page (619) Warming up Rectangle Page (619) W or h A=b × h L or b A ÷ b =A ÷ h b×h h =A ÷ b Parallelogram h h b 8. A = b × h = 20 × 12 = 240 cm 2 9. A = b × h =4.7× 5.7 =26.79 in 2 10. A = b × h =5.8× 3.5 =20.3 m2 Page (619) A 11. = b × h = 14 × 8 = 112unit 2 h = A ÷ b= 112 ÷ 10 =11.2 unit 12. A = b × h =0.4× 0.3 =0.12unit2 h = A ÷ b= 0.12÷0.5=0.24 unit 13. A = b × h = 18 × 12 = 216 unit2 h = A ÷ b= 216 ÷ 13 =16.62unit Page (619) Warming up Triangle Page (619) h h b b A A= × b × h 𝟏 𝟏× 𝟐 𝒃×𝒉 𝟐 14. A = × b × h = × 7 × 4 =14 m2 𝟏 𝟏 𝟐 𝟐 15. A = × b × h = × 4.5× 6 =13.5yd2 𝟏 𝟏 𝟐 𝟐 16. A = × b × h = × 2 × 3 = 3 ft2 𝟏 𝟏 𝟐 𝟐 Page (619)
