The semi-perimeter of an isoceles triangles is 22.5 cm. If each of its equal sides measures 14 cm, find the length of the third side.
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Answer:
the length of its base is 17 cm .
Step-by-step explanation:
semi-perimeter of isosceles triangle
=2a + b
2
now put all values
22.5 cm = 2*14 + b
2
22.5cm * 2 = 2 *14 + b
45 cm = 28cm + b
45 cm - 28 cm = b
17 cm = b
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