Question

The base of an isoceles triangle is 16 cm and its area is 48cm. Find the perimeter

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Area = 1/2 * base * height

48 = 1/2 * 16 * h

h = 48/8 = 6 cm

The height divides the isosceles triangle into two equal right triangles the hypotenuse of these 2 triangles which is also the equal side of the isosceles triangle is calculated as:

s = √(8^2 + 6^2) = √100 = 10 cm

thus the perimeter is:

P = 2 * 10 + 16 = 36 cm