Formulas

What is the formula for area of a Triangle?

• 1/2b^2

• $\frac{1}{2}bh$

• bh

• 2bh

How do you find area of a rectangle?

• 2bh

• 1/2bh

• bh

• bhr

How do you find cirumference?

• $\pi r$

• $\pi rd$

• $\pi d$

• $2\pi$

Area of trapezoid?

• $2b\left(h1+h2\right)$

• $\frac{1}{2\ }bh$

• $2bh$

• $\frac{1}{2\ }h\left(b1+b2\right)$

Area of a circle?

• $\pi r$

• $2\pi r$

• $\pi r^{2\ }$

• $\frac{1}{2\ \ }\pi r$