Area of Triangles Sine Area Heron's Formula Box Method

What is the area of this triangle?

• 12cm²

• 24 cm²

What is the area of this triangle?

• 31.5 units²

• 63 units²

• 77 units²

• 99 units²

What is the area of this triangle?

• 30 units²

• 35 units²

• 60 units²

• 70 units²

How do you find the area of a triangle?

• multiply base times height

• multiply base times height then divide by two

• find the distance around the triangle

What is the height of this triangle?

• 20 ft

• 12 ft

• 24 ft

• 10 ft

What is the length of the base of this triangle?

• 20 ft

• 12 ft

• 24 ft

• 10 ft

• 46.2 ft²

• 92.4 ft²

• 46.2 ft

• 92.4 ft

• 19.8 km²
• 37.8 km²
• 18.9 km²
• 35 km²

• 25.9 yd²

• 12.95 yd²

• 6.475 yd²

• 12.59 yd²

• 27.3 mi²
• 54 mi²
• 27 mi²
• 54.6 mi²