Find the area in square meters of the parallelogram whose base and alt

1.	Find the area in square meters of the parallelogram whose base and altitudes are as under(i) Base =15 dm, altitude = 6.4 dm(ii) Base =1 m 40 cm, altitude = 60 cm
Answer» (i) Given base =15 dm, altitude = 6.4 dm By converting these to standard form we get, Base = 15 dm = (15 x 10) cm = 150 cm = 1.5 m Altitude = 6.4 dm = (6.4 x 10) cm = 64 cm = 0.64 m We know that area of the parallelogram = Base x Altitude = 1.5 m x 0.64 m Area of parallelogram = 0.96 m² (ii) Given base = 1 m 40 cm = 1.4 m [Since 100 cm = 1 m] Altitude = 60 cm = 0.6 m [Since 100 cm = 1 m] We know that area of the parallelogram = Base x Altitude = 1.4 m x 0.6 m = 0.84 m²

Find the area in square meters of the parallelogram whose base and altitudes are as under(i) Base =15 dm, altitude = 6.4 dm(ii) Base =1 m 40 cm, altitude = 60 cm

Answer»

(i) Given base =15 dm, altitude = 6.4 dm

By converting these to standard form we get,

Base = 15 dm = (15 x 10) cm

= 150 cm

= 1.5 m

Altitude = 6.4 dm = (6.4 x 10) cm

= 64 cm

= 0.64 m

We know that area of the parallelogram = Base x Altitude

= 1.5 m x 0.64 m

Area of parallelogram = 0.96 m²

(ii) Given base = 1 m 40 cm = 1.4 m [Since 100 cm = 1 m]

Altitude = 60 cm = 0.6 m [Since 100 cm = 1 m]

We know that area of the parallelogram = Base x Altitude

= 1.4 m x 0.6 m

= 0.84 m²