Question

Construct the following rectangles with the given measurements and also find their area.

LAND, LA = 8 cm and AD = 10 cm

Answer 1

Given: LA = 8 cm and AD = 10 cm

Rough Diagram


Steps:

1. Drawn a line segment LA = 8 cm.

2. At L, constructed LX ⊥ LA.

3. With A as centre, drawn an arc of radius 10 cm and let it cut at LX at D.

4. With A as centre and LD as radius drawn an arc. Also with D as centre and LA as radius drawn another arc. Let then cut at N.

5. Joined DN and AN.

6. LAND is the required rectangle.

Calcualtion of area:

Area of the rectangle LAND = l × b sq.units

= 8 × 5.8 cm²

= 46.4 cm²