Area of a Triangles

Area of the Triangles

Heron Formula

How can WE calculate the area of a Triangle?

Cases

 $A=\frac{1}{2}abSin\ \left(C\right)$  or 
 $S=\frac{a+b+c}{2}$  and

 $A=\sqrt{s\left(s-a\right)\left(s-b\right)\left(s-c\right)}$  

Multiple Choice

What is the area of the triangle with sides a=3, b=5, c=6

• 6.6

• 7.5

• 7.2

• 7.0

Multiple Choice

Calculate the area of the triangle

• 27.3 mi²

• 54 mi²

• 27 mi²

• 54.6 mi²

Multiple Choice

Area

• 12 in sq
• 12 in
• 24 in sq
• 6 in sq

Multiple Choice

• 25.9 yd²
• 12.95 yd²
• 6.475 yd²
• 12.95 m²

Multiple Choice

What is the area?

• 12 cm²
• 14
• 14 cm²
• 24 cm²

Multiple Choice

Area or triangle?

• 20 cm²
• 56 cm²
• 28 cm²
• 27 cm²

Multiple Choice

• 17 units²
• 20 units²
• 10 units²
• 16 units²

Multiple Choice

How do you find the AREA of a TRIANGLE?

• Length x Width
• 1/2 (base x height)
• 1/3 (base x height)
• Base x Height

Multiple Choice

Find the area of a triangle with a base of 7 mm and a height of 10 mm?

• 70 mm squared
• 35 mm squared
• 17 mm squared
• 8.5 mm squared

Multiple Choice

Find the area of this triangle.

• 150 ft²
• 100 ft²
• 50 ft²
• 35 ft²