Given: 

Find:  Whether

Exercises 25, 26
Whether
Definition:
The triangle whose all sides and angles are same is called equilateral triangle.
The triangle whose two sides are equal is called isosceles triangle.
Given:
The triangle
Figure
From figure
Calculation:
Consider the triangle
From the given data,
The triangle
Substitute
Calculus: An Applied Approach (MindTap Course List)
Single Variable Calculus
Single Variable Calculus: Early Transcendentals, Volume I
Understanding Basic Statistics
Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach
Statistics for The Behavioral Sciences (MindTap Course List)
Calculus: Early Transcendental Functions
Multivariable Calculus
Finite Mathematics and Applied Calculus (MindTap Course List)
Precalculus: Mathematics for Calculus (Standalone Book)
Probability and Statistics for Engineering and the Sciences
Essentials Of Statistics
Applied Calculus
Elementary Technical Mathematics
Essentials of Statistics for The Behavioral Sciences (MindTap Course List)
Intermediate Algebra
Mathematical Excursions (MindTap Course List)
Finite Mathematics
Calculus (MindTap Course List)
Mathematical Applications for the Management, Life, and Social Sciences
Calculus: Early Transcendentals
Single Variable Calculus: Early Transcendentals
Calculus of a Single Variable
Trigonometry (MindTap Course List)
Elements Of Modern Algebra
Contemporary Mathematics for Business & Consumers
Study Guide for Stewart's Multivariable Calculus, 8th
Finite Mathematics for the Managerial, Life, and Social Sciences
Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th
Calculus: Early Transcendental Functions (MindTap Course List)
Multivariable Calculus
Statistics for Business & Economics, Revised (MindTap Course List)
Mathematics For Machine Technology
Calculus (MindTap Course List)
College Algebra (MindTap Course List)
STATISTICS F/BUSINESS+ECONOMICSTEXT
Research Methods for the Behavioral Sciences (MindTap Course List)
Research Methods for the Behavioral Sciences (MindTap Course List)
Introduction To Statistics And Data Analysis