Finding the Area of Triangles and Polygons

A regular heptagon has sides measuring 26 mm and is divided into 7 congruent triangles. Each triangle has a height of 20 mm. What is the area of the heptagon?

• 74.28 mm²

• 1,274 mm²

• 3,640 mm²

• 1,820 mm²

Find the area of this polygon.

• 22 mm²

• 110 mm²

• 320 mm²

• 100 mm²

To find the area of a regular polygon, we divide it into equal __________

• squares

• trapezoids

• triangles

• circles

Find the area

• 249 m²

• 41.5 m²

• 83 m²

• 332 m²

Find the area of the triangle. Each small square is 1 cm across.

• 8 cm²

• 6 cm²

• 4 cm²

• 18 cm²

Find the area of the triangles. Remember:- Base and height must form a right angle- Always divide by 2 on triangles

a

b

c

d

e

f

h

g

Find the area of the triangles.

Remember:

- Base and height must form a right angle

- Always divide by 2 on triangles

a

b

c

d

e

f

h

g

What is the area of this figure?

• 33 cm²

• 66 cm²

• 17 cm²

• 11 cm²

What is the area?

• 12 m²

• 24 m²

• 16 m

• 15 m²

Area of triangle?

• 17 units²

• 20 units²

• 10 units²

• 16 units²