Frequently Asked Questions
Example Find the cube root of 17576 through estimation
\nSolution: The given number is 17576"
(1) Split the number from right into the group of three digit numbers. We have 2 parts 17 and 576 .
(2) The unit digit of 576 is 6 . Hence the unit digit of required cube root is 6.
(3) Now, We have to estimate the cube root of 17.
(4) It lies between 8 and 27 i.e cube of 2 and 3 .23=8 and 33=27
Take the unit digit of the smallest number i.e 2 .
So, The cube root of 17576 is 26 .
The cube root of 17576 is found to be 26 through estimation.
Construct a quadrilateral ABCD with AB
=4.5cm, BC =5.5cm, CD =4cm, AD =6cm and diagonal AC =7cm .
Step 1. Draw a line segment BC=5.5cm.
Step 2. With B as center and radius =4.5cm, draw an arc.
Step 3. With C as center and radius =7cm, draw an arc to cut the arc in previous step at point A
Step 4. Join BA and CA
Step 5. With C as center and radius =4cm, draw an arc.
Step 6. With A as center and radius =6cm, draw an arc to cut the arc in previous step at point D
Step 7. Join AD and CD
ABCD is the required quadrilateral.
Hence, Required quadrilateral ABCD is attached below;
Solve the following equation
Hence, After solving the equation the value of x is 1.
The number of corners in a cube are
A Cube is a 3-dimensional shape and the vertex of the cube is the end point.
The corners in a cube are A, B, C, D, E, F, G, H
Number of Corners in a cube are 8.
Hence, Option (c) is correct. The number of corners in a cube are 8.
Explain why a rectangle is a convex quadrilateral
Answer: Both of its diagonals lie at its exterior.
A rectangle is a convex quadrilateral since its vertex are raised and both of its diagonals lie in its interior.
This implies that the answer Both of its diagonals lie at its exterior is True.
Hence, Option (A) is correct. The Answer “Both of its diagonals lie at its exterior” is true.