Question

how to find area of plank​

Answer 1

Explanation: x⋅(x+120)=4500→ The width of the rectangular plank has to be the same as the square since the square was broken off of it (the plank), and the sum of the lengths of the rectangle and the square must add up to the length of the plank (these two parts originally formed part of the plank). x2+120x=4500.

Answer 2

Hii there

here is your answer

The plank is one of the best exercises for a flat, toned stomach because it works all the muscles in your core, including the rectus abdominus (the "six-pack muscles" you can see), transverse abdominus, internal and external obliques, hips, and back.

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