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3. The length of a rectangular picture frame is 16 inches, and the width of the picture frame is
12 inches. What is the length of a diagonal of this picture frame in inches?
+/-

Sagot :

Answer:

20inches

Step-by-step explanation:

The length of the diagonal is gotten by using the pythagoras theorem as shown;

l^2 = h^2 + w^2

l is the length of diagonal

h is the height

w is the width

l^2 - 16^2 + 12^2

l^2  = 256 + 144

l^2 = 400

l = √400

l = 20in

Hence the  length of a diagonal of this picture frame in inches is 20inches