The width of a rectangle is 20 cm. The diagonal is 8 cm more than the length. Find the length of the rectangle.
Solution
Correct Answer: Option B
আয়তক্ষেত্রটির দৈর্ঘ্য xcm
" '' কর্ণ (x+8)
∴(x+8)²=x²+20²
x²+16x+64=x²+400
16x=336
x=21
" '' কর্ণ (x+8)
∴(x+8)²=x²+20²
x²+16x+64=x²+400
16x=336
x=21
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