If two adjacent angles of a parallelogram are (2x+30)∘ and (3x−15)∘. Then the value of x is:
Held on 6 Aug 2022 · Verified 13 Jul 2026.
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Two men are on opposite side of tower. They measure the angles of elevation of the top of the tower as 30° and 45° respectively. If the height of the tower is 50 meters, find the distance between the two men.
What is the value of x for which the points A (-1, 3), B (2, x) and C (5, -1) are collinear?
Match List-I with List-II | List-I | List-II | |---|---| | (Shapes) | (Area/Perimeter/Diagonal/slant height) | | (A) Trapezium | (I) √(l² + b² + h²) | | (B) Sector of a circle | (II) √(R² + (R - r)²) | | (C) Cuboid | (III) 1/2 h(a + b) | | (D) Frustum of cone | (IV) (θ/360°) × 2πr | Choose the correct answer from the options given below:
The area of a rectangle whose length is 5 more than twice its width is 75 square unit. What is the perimeter of the rectangle?
An observer, 1.5 m tall, is 28.5 m away from a chimney. The angle of elevation of the top of the chimney from her eyes is 45°. Determine the height of the chimney?
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