Formula for Area Quadrilaterals and Triangles

There is a special triangle area equation we have not looked at yet. If you know two sides of a triangle and the angle between them, you can use this formula Area = (1/2)*side1*side2*sin(<). What is the area of this triangle?

• 62.3 units²

• 124.6 units²

• 77.0 units²

• 100 units²

Tags

CCSS.HSG.SRT.D.9

Find the area of this triangle.

• 20 cm²

• 35 cm²

• 40 cm²

• 17.5 cm²

Tags

CCSS.6.G.A.1

Find the area of the shape.

• 12 units²

• 10 units²

• 13 units²

• 11 units²

Tags

CCSS.6.G.A.3

What is the formula for calculating the area of a trapezoid?

Tags

CCSS.6.G.A.1

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

• Parallel

• Intersecting

• Perpendicular

• Congruent

Tags

CCSS.6.G.A.1

A = bh is the formula for the area of which polygon?

• Triangles

• Parallelograms

• Trapezoids

• Circles

Tags

CCSS.6.G.A.1

Find the area:

• 40 yd

• 40 yd²

• 80 yd²

• 18 yd²

Tags

CCSS.6.G.A.1

Find the area?

• 15 in²

• 30 in²

• 15 in

•  30 in

Tags

CCSS.6.G.A.1

Find the area.

• 60 in

• 60 in²

• 50 in

• 50 in² 

Tags

CCSS.6.G.A.1

Find the area

• 41

• 45

• 44

• 43

Tags

CCSS.6.G.A.1