If the angles of a triangle are in the ratio of 2 : 3 : 7, then find the ratio of the greatest angle to the smallest angle.
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A curved mirror where the reflecting surface is curved inwards is called a
Which type of electromagnetic radiation has the longest wavelength?
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.Cell, Tissue, Organ, ?
In which of the following types of economy are the factors of production owned individually?
In ΔPQR, PQ = PR = 18 cm, AB and AC are parallel to lines PR and PQ respectively. If A is the mid-point of QR, then what is the perimeter (in cm) of quadrilateral ABPC?
Which of the following plants have root nodules?
Which of the following is a characteristic of an exothermic reaction?