Concept-wise Practice

area shortcut MCQ Questions for Class 9

area shortcut se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

1 questions tagged with area shortcut.

यदि (a+b=13) और (a-b=5) हैं, तो \(a^2-b^2\) के आयत मॉडल का क्षेत्रफल कितना होगा?

If (a+b=13) and (a-b=5), what is the area of the rectangle model of \(a^2-b^2\)?

Explanation opens after your attempt
Correct Answer

B. (65)

Step 1

Concept

The difference of squares is ((a+b)(a-b)=13\cdot 5=65). Exam tip: no need to find (a) and (b) separately.

Step 2

Why this answer is correct

The correct answer is B. (65). The difference of squares is ((a+b)(a-b)=13\cdot 5=65). Exam tip: no need to find (a) and (b) separately.

Step 3

Exam Tip

वर्गों का अंतर ((a+b)(a-b)=13\cdot 5=65) है। परीक्षा में (a) और (b) अलग निकालने की जरूरत नहीं होती।

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