don steward
mathematics teaching 10 ~ 16

Tuesday, 12 December 2017

equable isosceles triangles

the area value = perimeter value
for isosceles triangles (including an equilateral triangle, in Q2) with integer heights

this work involves: surds,
rationalising (simple) denominators
and pythagoras

three triangles sum to the large (isosceles) triangle

2a + 2c = ah since P = A

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