Update index.html

Author: Gmac4247

index.html

@@ -702,7 +702,7 @@ <h3 itemprop="name" style="margin:7px">Trigonometry</h3>
 <br>
 <div style="margin:12px" itemprop="about" itemscope itemtype="https://schema.org/PropertyValue" id="sine">
 <meta itemprop="description" content="Definition of sine: sine = opposite / hypotenuse">
-<span itemprop="name">sine</span>=
+<span itemprop="name">sine </span>=
 <span itemprop="value">
 <math xmlns="http://www.w3.org/1998/Math/MathML">
 <mrow>
@@ -717,7 +717,7 @@ <h3 itemprop="name" style="margin:7px">Trigonometry</h3>
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 <div style="margin:12px" itemprop="about" itemscope itemtype="https://schema.org/PropertyValue" id="cosine">
 <meta itemprop="description" content="Definition of cosine: cosine = adjacent / hypotenuse">
-<span itemprop="name">cosine</span>=
+<span itemprop="name">cosine </span>=
 <span itemprop="value">
 <math xmlns="http://www.w3.org/1998/Math/MathML">
 <mrow>
@@ -732,7 +732,7 @@ <h3 itemprop="name" style="margin:7px">Trigonometry</h3>
 <br>
 <div style="margin:12px" itemprop="about" itemscope itemtype="https://schema.org/PropertyValue" id="tangent">
 <meta itemprop="description" content="Definition of tangent: tangent = opposite / adjacent">
-<span itemprop="name">tangent</span>=
+<span itemprop="name">tangent </span>=
 <span itemprop="value">
 <math xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
@@ -747,7 +747,7 @@ <h3 itemprop="name" style="margin:7px">Trigonometry</h3>
 <br>
 <div style="margin:12px" itemprop="about" itemscope itemtype="https://schema.org/PropertyValue" id="cotangent">
 <meta itemprop="description" content="Definition of cotangent: cotangent = adjacent / opposite">
-<span itemprop="name">cotangent</span>=
+<span itemprop="name">cotangent </span>=
 <span itemprop="value">
 <math xmlns="http://www.w3.org/1998/Math/MathML"> 
 	<mrow>
@@ -3569,7 +3569,7 @@ <h3 itemprop="name" style="margin:7px">Calculate the Surface Area of a Cone</h3>
 <div style="margin:12px" itemprop="about" itemscope itemtype="https://schema.org/PropertyValue">
 <p itemprop="description">The slant height of the cone is the radius of the slice.</p>
 <br>
-<meta itemprop="description" content="Calculating the slant height of the cone from its height and radius: Slant height = √( radius² + height² )">
+<meta itemprop="description" content="Calculating the slant height of the cone from its height and radius: Slant height = sqrt( radius^2 + height^2 )">
 <span itemprop="name">Slant height </span>=
 <span itemprop="value">
 <math xmlns="http://www.w3.org/1998/Math/MathML">
@@ -3626,7 +3626,7 @@ <h3 itemprop="name" style="margin:7px">Calculate the Surface Area of a Cone</h3>
 <div style="margin:12px" itemprop="about" itemscope itemtype="https://schema.org/PropertyValue">
 <p itemprop="description">The area of the circle slice equals 3.2 times the slant height squared multiplied by the angle.</p>
 <br>
-<meta itemprop="description" content="Lateral surface of the cone">
+<meta itemprop="description" content="Lateral surface of the cone = 3.2 × ( r^2 + H^2 ) × ( r / sqrt( r^2 + H^2 ) )">
 <span itemprop="name">A<sub>(lateral)</sub> </span>=
 <span itemprop="value">
 <math xmlns="http://www.w3.org/1998/Math/MathML">
@@ -3716,7 +3716,7 @@ <h3 itemprop="name" style="margin:7px">Calculate the Surface Area of a Cone</h3>
 </div>
 <br>
 <div style="margin:12px" itemprop="about" itemscope itemtype="https://schema.org/PropertyValue">
-<meta itemprop="description" content="Surface area of the cone including the bottom">
+<meta itemprop="description" content="Exact surface area of the cone formula including the bottom: Area = 3.2 × radius × ( radius + sqrt( radius^2 + height^2 ) )">
 <span itemprop="name">A<sub>(bottom)</sub> + A<sub>(lateral)</sub> </span>=
 <span itemprop="value">
 <math xmlns="http://www.w3.org/1998/Math/MathML">
@@ -4372,7 +4372,7 @@ <h4 itemprop="abstract">The volume of a cone can be calculated by algebraically
 <br><br>
 The slant height of the quadrant cone is √2 × radius.
 <br><br>
-Take a quarter cylinder with its radius equal to the cone and its height equal to the slant height of the unit cone.</p>
+Take a vertical quadrant cylinder with its radius equal to the cone and its height equal to the slant height of the unit cone.</p>
 <br>
 <math xmlns="http://www.w3.org/1998/Math/MathML">
 <mrow>