The Pythagorean Theorem is a formula. The formula is used to calculate the length of a side of a right triangle (hypotenuse or either of the legs). The formula is a2 + b2 = c2.
Question 2: How do you find the surface area of a right rectangular prism?
Definition of a Right Rectangular Prism
A right rectangular prism is a 3D shape that all angles are at 90°. The rectangular prism has 6 sides called faces and 8 pairs of parallel lines.
The way to find the surface area of a rectangular prism is by using the formula below
SA= 2(lw) + 2(hw) + 2( lh)
SA= 2(3x11) + 2(3x3) + 2(11x3)
SA= 2(33) + 2(9) + 2(33)
SA= 66 + 18 + 66
SA= 150 cm2
l= length
w=width
h=height
Question 3: How do you find the surface area of a right cylinder?
A right cylinder is a rounded rectangular prism with two circles on each base. Some everyday right cylinders are: pop cans, paper towel rolls, air tank for scuba diving, trees, totem poles, unsharpened pencils, etc.
SA= 2(3.14)(r2) + 2(3.14)(h)(r)
SA= (6.28)(52) + (6.28(10)(5)
SA= 157 + 314
SA= 471cm2
Question 4: What is a polygon and how do we classify one?
Definition of a Polygon
A polygon is a closed figure made by joining line segments, where each line segment intersects exactly two others. A regular polygon is a polygon whose sides are all the same length, and whose angles are all the same.
Quadrilaterals are polygons with four sides. They include rectangles, squares, trapezoids, parallelograms, rhombuses. A square is a quadrilateral with four equal sides and four equal right angles. Triangles are polygons with three sides. There are several types of triangles.
Some good links for more information on what might not have been explained during the post:
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