**Aim: **To estimate area of irregular shapes

**1)** Place your left (or right) hand firmly on the piece of graph paper. Trace the outline of your palm and fingers onto the paper. Determine the **approximate area** covered by your hand.

Number of grids counted = 117

Area of each grid = 1 cm^{2}

Approximate area of hand = 117 cm^{2}

**2)** This is an estimation of the area of your and. Suggest how the accuracy of your estimation can be improved.

-> Use a smaller grid to estimate the area and keep my fingers closed when I trace the outline of my hand. This reduces the area of my hand left out of the measurement due to the grid not being ≥50% covered by the outline.

Number of grids counted = 302

Area of each grid = 0.36 cm^{2}

Approximate area of hand = 108.72 cm^{2}

### Like this:

Like Loading...

*Related*