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Mathematics 9 Online
OpenStudy (anonymous):

Question 1: Find the base of a triangle that has a height of 12 in. and an area of 96 in2. Question 2: Find the area of a circular rug with a diameter of 26. Question 3: Find the midpoint between two points on a coordinate plane whose coordinates are (7, -8) and (-3, -4).

OpenStudy (jack1):

1. Formula for area of a triangle is...??? @parisgirl1515 ? please withe here an we'll build from there Q2. Formula for area of a circle is...??? @parisgirl1515 ? please write here an we'll build from there Q3... we'll come to this when we finish the above two Q'2

OpenStudy (jack1):

|dw:1395998521265:dw|

OpenStudy (anonymous):

BaseXHeight

OpenStudy (anonymous):

πr2

OpenStudy (jack1):

sorry... are we doing Q1? no, still missing something from the formula for triangles http://www.mathsisfun.com/triangle.html

OpenStudy (jack1):

and Q2: perfect. Area = π* r *2 and 2r = Diameter so if D = 26, and D = 2r , what is r?

OpenStudy (anonymous):

lol

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