An umbrella is made by stitching 10 triangular pieces of cloth of two different colours ,each piece measuring 20cm,50 cm and 50 cm.How much cloth of eachbcolouris required for the umbrella
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Step-by-step explanation:
there are 10 triangles.
Let 5 are blue and 5 are yellow.
Area of each clothes = 5×(area of 1triangle)
a=50cm b=20cm c=50cm
s=a+b+c÷2=50+20+50÷2=60cm
area of triangle =
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