Answer:
A. If the side lengths are the same, then a triangle is not scalene.
Step-by-step explanation:
A triangle can be defined as a two-dimensional shape that comprises three (3) sides, three (3) vertices and three (3) angles.
Simply stated, any polygon with three (3) lengths of sides is a triangle.
In Geometry, a triangle is considered to be the most important shape.
Generally, there are three (3) main types of triangle based on the length of their sides and these include;
I. Equilateral triangle: it has all of its three (3) sides and interior angles equal.
II. Isosceles triangle: it has two (2) of its sides equal in length and two (2) equal angles.
III. Scalene triangle: it has all of its three (3) sides and interior angles different in length and size respectively.
Answer:

Step-by-step explanation:
=> 
<u>Using Formula</u> 
<u><em>Where </em></u>
a = 249
b = 248
=> 
=> 
=> 497
Answer:
The sum is equal to 
Step-by-step explanation:
we know that
The formula to calculate the sum is equal to

In this problem
-----> number of terms
a1 is the first term

an is the last term

substitute

<span>4/5 + 8/10 =1.6
i hope this help</span>
Equations are found everywhere in mathematics. Students of middle school are introduced by the equations in algebra. Analgebraic equation<span> is a combination of one or more terms separated with "</span>equal<span>" symbol </span>"=". The terms are the expressions or monomials made up of constants and variables. The terms can be numerical, alpha numerical, expression etc. The terms are connected with one another with the help of addition (+) or subtraction (-) symbols.
<span>For example -
(1)</span><span> x + 2 = -3</span>
(2) <span><span>2<span>a3</span>−2<span>a2</span></span><span>2<span>a3</span>−2<span>a2</span></span></span>b+ab+2 = 7
(3)<span> 3 x - 1 = x + 2</span>
There are different types of equations, such as - linear equations in one and two variables, logarithmic equations, exponential equations, fractional equations, polynomial equations etc. Equations represent the relationship between variables. There may be one or more variables in an equation.
<span>By solving equations, we mean to find all the possible values of one or more variables contained in it. Equations can be solved either algebraically or graphically. There are various algebraic methods that can be utilized in order to get the solution of an equation. The choice of these methods may depend upon the types of equation. In order to find the values of all the variables in the equation, we need as many number of same types of equations as the total number of variables. </span>For example -<span> An equation 2 x + y = 1 needs one more equation of same type (such as x + y = 7), since it has two variables x and y. Equations are also used to solve word problems in many areas. Let us understand about equations in detail in this page below.</span>