Question

shrehan wants to make a school project by cutting a cardboard of length = 5 1/4m and breath 2 3/5m into 4 equal pieces. find the area of 3 such pieces Full Explanation in English​

Answer 1

Area of cardboard = 21/4 * 18/5 = 189/10m²

Area 4 pieces of cardboard= 189/10m²

Area of 1 piece= 189/10 * 1/4 = 189/40m²

Area of 3 pieces= 189/40 * 3 = 567/40m²

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Answer 2

Answer:

If the angle of elevation of a cloud from a point h metre above a lake is and the angle of depression of its reflection in the lake be b, prove that the distance of the cloud from the point of observation is assignments for application of trigonometry