Answer:
<em>w = 12 cm </em>and <em> l = 20 cm</em>
Step-by-step explanation:
72*12 = 2*2*2*2*2*3*3*3 = 2^5*3^3
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<span>Since the triangles are right triangles, the hypotenuse can be calculated using the Pythagorean theorem:
5²+12²=x²
x²=25+144, x²=169⇒x=√169
x=13
The hypotenuse of a smaller triangle is 13 units.</span>