a Hand Fan is made by stitching 10 equal size triangular strips of two different types of paper the dimensions of equal strips are 25 CM 25 cm and 14 cm find the area of each type of paper needed to make the hand fan
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Let a = 25cm, b = 25cm, c = 14cm
s = a+b+c/2 = 25+25+14/2
= 64/2 = 32cm
Area = √s(s-a)(s-b)(s-c)
= √32*7*7*18
= √2*2*2*2*2*7*7*2*3*3
= 2*2*2*7*3
= 8*21
= 168cm²
Area of 1 triangular strip = 168cm²
Area of 5 traingular strips = 168*5 = 840cm²
⇒Area of 5 first type of strips = 840cm²
Area of 5 second type of strips = 840cm²
Nereida:
but it's not given how much triangular strips are there of 1 co
1 colour paper
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