1. A field in the form of parallelogram has sides 60 m and 40 m and one of its diagonals is 80m long. Find the area of the parallelogram.
2. The sides of a quadrilateral ABCD are 6cm, 8cm, 12cm and 14cm respectively. The angle between the first two sides is a right angle. Find its area.
3. A rhombus-shaped sheet with perimeter 40cm and one diagonal 12 cm, is painted on both sides at the rate of Rs. 5 per m2. Find the cost of painting.
4.From a point in the interior of an equilateral triangle, perpendicular are drawn on the three sides. The lengths of the perpendicular are 14cm, 10cm and 6cm. Find the area of the triangle.
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Step-by-step explanation:
1)=area of parallelogram=b*
=60*40=2400m²
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