Find the Area of Triangles, Quadrilaterals, and Polygons

What is a polygon with four sides (edges) and four corners?

• polygon

• quadrilateral

• area

• perimeter

_____ is measured in square units and uses the formula length x width. It is used to measure the inside of a flat figure or the surface of a 3D figure.

Mark all shapes that are flat shapes made up of lines and are enclosed:

• polygons

• quadrilaterals

• trapezoids

• triangles

• rectangles

When using formulas for Area, the base and the height must always be _________________.

• Parallel

• Intersecting

• Perpendicular

• Congruent

What is the formula to find the area of a triangle? (choose all that apply)

• A = bh

What formula would you use to find the area?

What is the formula for finding the area of a triangle?

Find the area. Round to the nearest tenth.

• 26.2mi

• 27mi

• 33mi

• 29.8

What formula would you use to find the area?

• A = bh

• A = 1/2 bh

• A = 1/2 h (b₁+b₂)

• A = lw

What is the formula for finding the area of a TRIANGLE?

• bh

• (1/2)bh

• lw

• (pi)(diameter)