Same chapter3 marksDifficulty: Medium
In a right-angled triangle one acute angle is 30° and the side opposite it is 7 cm. Find the hypotenuse and the third side.
Solution of Right Triangles
3 marksDifficulty: Medium
A tree casts a shadow 15 m long when the angle of elevation of the sun is 45°. Find the height of the tree.
Original Khojo Papers practice question — not from a past board paper.
Answer
15 m
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
tan 45° = h ÷ 15 = 1, so h = 15 m.
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Factorise x4 − 81.
Factorisation