How to find Area of an Equilateral Triangle if its Perimeter is given QUESTION: If the perimeter of an equilateral triangle is 30 cm, what is its area? … Read More »How to find Area of an Equilateral Triangle if its Perimeter is given
When to use ‘Law of Cosines’ for triangle CASE 2 Click here for CASE 1 QUESTION: Given ΔABC, with AB = 10cm, 𝐵C =6cm and ∠𝐵… Read More »Law of Cosines, Case 2
QUESTION: The length of a rectangle exceeds its breadth by 6cms. If the length were halved and the breadth were increased by 7cms, the area… Read More »A Solved Example on How to Find the Length of a Rectangle by inter-related values
Definition of Center of a Circle, Radius of a Circle and Diameter of a Circle The origin or center of a circle is the center point in a circle from… Read More »What is Center, Radius and Diameter of a Circle?
QUESTION: The diameter of a circle is 20 miles. What is the angle measure of an arc bounding a sector with an area of 9π miles² ? … Read More »How to Find Angle of Sector of a Circle by its Diameter and Sector Area
QUESTION: What is the area of a rectangular room with a perimeter of 24 m and length of 8 m? SOLUTION: Formula of… Read More »How to Find Area of a Rectangle by its Perimeter and Length
QUESTION: A postcard has an area of 24 square inches. Its perimeter is 20 inches. What are the dimensions of the postcard inches by inches?… Read More »How to Find Length and Width of a Rectangle by its Area and Perimeter
Find Perimeter of a Square if its Area is given QUESTION: A square plot of land has an area of 784 square meters. What is the perimeter of the land?… Read More »Find Perimeter of a Square if its Area is given
QUESTION: What is the equation of the circle that has its center at (-3, 4) and passes through the point (-3, 0)? SOLUTION: Standard equation… Read More »How to Find Equation of a Circle by its Center and a point
When to use ‘Law of Cosines’ for triangle CASE 1 Click here for CASE 2 QUESTION: A triangular park has side lengths that are 200 m, 155 m, and… Read More »Law of Cosines, Case 1