A triangle has an area of 21 cm^2 . Its base is 7cm long. Would all triangles with a base of 7 cm have an area of 21 cm^2? Explain. About the author Evelyn
Area of a ∆ = 1/2 (b×h) 21cm²= 1/2( 7cm×h) 21cm²×2= 7cm×h h= 21cm²×2/7cm= 3cm×2= 6cm No, all the triangles with base 7cm will not have an area of 21cm² it also depends on the height. Reply
Area of a ∆ = 1/2 (b×h)
21cm²= 1/2( 7cm×h)
21cm²×2= 7cm×h
h= 21cm²×2/7cm= 3cm×2= 6cm
No, all the triangles with base 7cm will not have an area of 21cm² it also depends on the height.
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