Area Formulas

What is the formula for the area of a triangle?

• A=bh

• A=lw

• A=s²

• A=1/2(bh)

What is the formula for the area of a parallelogram?

• A=bh

• A=lw

• A=s²

• A=1/2(bh)

How do you find the diameter of a circle

• Multiply by pi

• Multiply the radius by 2

• Divide the radius by 2

• It's impossible...

How do you find the radius of a circle?

• Divide the diameter by 2

• Multiply the diameter by 2

• Divide by pi

• Cry....

What is the formula for the area of a rectangle?

• A=lw

• A=1/2*h(b1+b2)

• A=3.14(r)

• A=s²

What is the formula for the area of a circle?

• A=Pi(d)

• A=Pi(r²)

• A=bh

• A=lw

The formula for the Circumference of a circle is....

• A=lw

• C=Pi(d)

• C=Pi(r)(2)

• C=7

What is the area formula for a circle?

Find the area of the triangle.

• A = 40cm²

• A = 20cm²

• A = 13cm²

• A = 80cm²

What is the formula for circumference of a circle?