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1) The perimeter of an isosceles triangle is 131/20 cm. If one of its equal sides is 7/5 cm , find the third side |
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Answer» Answer: hey here is your answer pls mark it as BRAINLIEST Step-by-step explanation: so here third side is nothing but base so we know if one side of isoceles triangle is equal other is also of same LENGTH of same MEASURE as two sides EXCEPT it's base are equal of isoceles triangle so then we know that perimeter of isoceles triangle =2×confmgruent side+base so substitute given values ie 131/20=(2×7)/5+base 131/20=14/5+base multiply (14/5) by 4 we get 131/20=56/20+base solve it we get base=85/20 ie base=3.75 CM hence length of third side is 3.75 cm |
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