Area of regular quadrilaterals and triangles

What is the area of the figure?

• 259.8

• 129.9

• 47.5

• 365.3

Tags

CCSS.6.G.A.1

A ___________ polygon is a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length). 

• plain
• perfect
• regular
• magical

Tags

CCSS.2.G.A.1

What does the 'a' stand for in the following formula?

• area 
• apossum
• altitude
• apothem

Tags

CCSS.6.G.A.1

What is the formula for area of a regular polygon.

• ½⋅apothem⋅perimeter

• a² + b² = c²

• πr²

• √x²+y²

Tags

CCSS.6.G.A.1

What is the length of y in this picture?

• 45
• 5√2
• 90
• 5

Tags

CCSS.HSG.SRT.C.8

What is the length of y in this 45-45-90 triangle?

• 8√2
• 4√2
• 4
• 8

Tags

CCSS.8.G.B.8

What is the rule for a 45-45-90 triangle?

Tags

CCSS.8.G.B.8

What type of special triangle is this?

• 45°-45°-90°
• 30°-60°-90°
• Equiangular
• Equilateral

Tags

CCSS.4.G.A.2

What is the rule for a 3-60-90 triangle?

Tags

CCSS.8.G.B.8

In a regular polygon, the line from the center to an outer vertice is a(n)

• Apothem

• Central Angle

• Radius

• Regular Polygon