Blog
Guides and explanations to go along with your exam prep.
233 articles · page 12 of 24
Circumscribed Triangles and High-Weightage Board Riders for CBSE Class 10
Master circumscribed triangles and high-weightage 5-mark board exam circle riders for CBSE Class 10 Mathematics. Step-by-step complete solution to the famous NCERT 12cm circumscribed triangle problem and external tangent length riders.
6 min read
Tangents, Chords, and Angle Theorems in Circles for CBSE Class 10
Master tangents, chords, and angle theorems in circles for CBSE Class 10 Mathematics. Learn the 90-degree parallel tangents rider (angle AOB = 90°), the angle between two tangents and chord theorem (angle PTQ = 2 angle OPQ), and board exam proofs.
5 min read
Circumscribing Quadrilaterals and The Rhombus Theorem for CBSE Class 10
Master circumscribing quadrilaterals and the Rhombus Theorem for CBSE Class 10 Mathematics. Learn the proof of AB + CD = AD + BC, why a circumscribing parallelogram is a rhombus, and why opposite sides subtend supplementary angles at the center.
6 min read
Lengths of Tangents from an External Point for CBSE Class 10 Mathematics
Master Theorem 10.2 (Lengths of Tangents Drawn from an External Point) for CBSE Class 10 Mathematics. Learn the RHS congruence proof, the supplementary angle corollary, angle bisector properties, and concentric circle problems.
6 min read
Tangents to a Circle and The Radius-Tangent Perpendicularity for CBSE Class 10
Master tangents to a circle and the Radius-Tangent Perpendicularity Theorem for CBSE Class 10 Mathematics. Learn secants vs tangents, the point of contact, proof of Theorem 10.1 by contradiction, parallel tangents along a diameter, and Pythagoras applications.
6 min read
Mechanism of Sex Determination in Humans for CBSE Class 10
Master the mechanism of sex determination in humans for CBSE Class 10 Science. Explore environmental vs genetic sex determination, autosomes and sex chromosomes (XX vs XY), the 50% probability cross, and why biological sex is determined by the father.
5 min read
How Traits Get Expressed: The Molecular Basis of Heredity for CBSE Class 10
Master how traits get expressed at the molecular level for CBSE Class 10 Science. Learn how cellular DNA codes for specific enzymes, how hormones dictate physical traits, homologous chromosome pairs, and how meiosis prevents chromosome doubling.
5 min read
Mendel's Dihybrid Cross and Independent Assortment for CBSE Class 10
Master Gregor Mendel's Dihybrid Cross and the Law of Independent Assortment for CBSE Class 10 Science. Learn the 16-box Punnett square, the 9:3:3:1 phenotypic ratio, independent gamete assortment, and solved board exam genetics problems.
5 min read
Mendel's Monohybrid Cross and Laws of Inheritance for CBSE Class 10
Master Gregor Mendel's Monohybrid Cross and the Laws of Inheritance for CBSE Class 10 Science. Learn why Mendel selected pea plants, pure-breeding parents, F1 and F2 generations, the 3:1 phenotypic and 1:2:1 genotypic ratios, and Punnett squares.
6 min read
Accumulation of Variation and Introduction to Heredity for CBSE Class 10
Master the fundamentals of heredity and the accumulation of variation for CBSE Class 10 Science. Learn how variations arise in asexual vs sexual reproduction, the survival advantages of variation, dominant vs recessive traits, and human earlobe inheritance.
5 min read