Question
The circumference of a circle is 55 cm and the length of
the rectangle is 8 times the radius of the circle. Find the area (in cm2) of the rectangle, if the ratio of length and the breadth of the rectangle is 14:5, respectively.Solution
Let the radius of the circle = ‘r’ cm Circumference of the circle = 2πr 55 = 2 × (22/7) × r r = 8.75 Radius of the circle = 8.75 cm Length of the rectangle = 8.75 × 8 = 70 cm Breadth of the rectangle = (70/14) × 5 = 25 cm Area of the rectangle = 25 × 70 = 1750 cm2
The study of soil from the stand point of higher plants is known as……………………….
Which of the following is a complex fertilizer?
The major microorganism that is considered most important as an indicator of soil quality is:
Factor responsible for the formation of Saline soils/White alkali is/are:
………………………….. is designed to break up hard layers or pans without bringing them to the surface.
...The deficiency symptom for Fe in plants is
The saline soils contain toxic concentration of soluble salts in the root zone. These saline soils are also known as…………...
The indicator plant for zinc deficiency is ____
Which of the following is acid tolerant crop?
Largest soil order in world is
