Applying VBT explain the bonding of NH3 and N2F2 molecules
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1. The cost of painting the top surface of a triangular board at 80 paise per m² is 176.40. If the height of the board measures 24.5m. find its base.
2. Find the area of a right-angled triangle whose base is 1.2 m and hypotenuse 3.7 m.
3. The base of an isosceles triangle is 48cm and one of its equal sides is 30cm. Find the area of the triangle.
4. A diagonal of quadrilateral is 26cm and the perpendiculars drawn to it from the opposite vertices are 12.8 cm and 11.2cm. Find the area of the quadrilateral.
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