If each edge of a cube is increased by 50%, find the percentage increase in Its surface area
Let the edge = a cm
So increase by 50 % = a + a/2 = 3a/2
Total surface Area of original cube = 6a2
TSA of new cube = 63a22 =69a24= 13.5a2
Increase in area = 13.5a2-6a2 =7.5a2
7.5a2 Increase % =7.5a26a2×100 = 125%
The volume of a sphere is 179.67 cub.cm. Find its diameter (in cm).
What is the sum of the measures of all the interior angles of a regular polygon of 5 sides?
Consider the following two triangles as shown in the figure below.
Choose the correct statement for the above situation.
Find the total surface area (in cm²) of a right circular cone of diameter 14 cm and slant height 10 cm.
The length of the diameter of the circle is 10 cm and length of the chord drawn in a circle is 6 cm. Find the distance (in cm) of chord from the center.
Find the curved surface area (in cm2) of a right circular cylinder of diameter 7 cm and height 6 cm.
In triangle ABC, O is the orthocenter and angle BOC is 120 deg. Calculate angle BAC.
Advertise with Us
RRB ALP & Technicians
Copyright © 2019 Sawaal.com | All Rights Reserved