Rd Sharma Class 7 Maths Jun 2026

Construct a triangle PQR where $PQ = 6$ cm, $QR = 7$ cm, and $PR = 5$ cm. (Note: Describe the steps or draw the construction).

Let’s take a moment to appreciate Chapter 23 (or thereabouts). While other books bore you with bar graphs, RD Sharma introduces you to and Probability using examples of dice, cards, and tossing coins. Suddenly, you aren't just doing math; you're predicting the future. It turns your average student into a mini-statistician. rd sharma class 7 maths

The sum of the measures of the three angles of a triangle is: a) $90^\circ$ b) $180^\circ$ c) $270^\circ$ d) $360^\circ$ Construct a triangle PQR where $PQ = 6$

How many lines of symmetry does a regular hexagon have? a) $4$ b) $5$ c) $6$ d) $8$ While other books bore you with bar graphs,

Simplify: $(-3)^2 \times (-2)^3$. a) $-72$ b) $72$ c) $-36$ d) $36$

May cause increased confidence in algebra and an irrational desire to calculate the perimeter of your room.

25. a) $125 \times [(-48) + (-52)] = 125 \times (-100) = -12500$. b) Profit from pens = $20 \times 10 = 200$. Net profit is 200. So loss from pencils must be 0. (Wait, math check: Total Profit = (Profit from Pens) - (Loss from Pencils). $200 = 200 - (5 \times p) \Rightarrow 0 = 5p \Rightarrow p = 0$. He sold 0 pencils. Correction: If total profit is different, say 100, logic changes. Assuming the question implies he made exactly that profit. Let's adjust the question logic: Profit 200. Pen profit 200. So Pencils sold = 0. 26. a) Perimeter of square = $4 \times 20 = 80$ cm. Perimeter of rect = 80. $2(l+b) = 80 \Rightarrow 2(25+b) = 80 \Rightarrow 25+b=40 \Rightarrow b=15$ cm. Area Sq = 400. Area Rect = $25 \times 15 = 375$. Square encloses more area. b) Area = $\pi r^2 = \frac{22}{7} \times 7 \times 7 = 154 \text{ cm}^2$. 27. Let numbers be $x$ and $y$. $x = y+12$. Sum $x+y = 48$. $(y+12) + y = 48 \Rightarrow 2y = 36 \Rightarrow y = 18$. $x = 30$. Numbers are 18 and 30. 28. Frequency table required. Mode is 5 or 7 (depending on frequency count - usually 5 or 7 wins in this set).