Length of the fence of trapezium ABCD = AB + BC + CD + DA
120 m = AB + 48 m + 17 m + 40 m
AB = 120 m - 105 m = 15 m
Area of the field ABCD
= \(\frac{1}{2}\) × (AD + BC) × AB
= \(\frac{1}{2}\) × (40 + 48) × 15 m
= \(\frac{1}{2}\) × (88 m) × 15 m
= 44 m × 15 m
= 660 m²
Thus, area of the field ABCD is 660 m²
Underline the verbs and arrange them in two columns, Past and Earlier past.
(a) My friends set out to see the caves in the next town, but I stayed at home, because I had seen them already.
(b) When they arrived at the station, their train had left. They came back home, but by that time I had gone out to see a movie!
(c) So they sat outside and ate the lunch I had packed for them.
(d) By the time I returned, they had fallen asleep!
Past | Earlier Past |