A regular polygon: A polygon having all sides of equal length and interior angles of equal size is known as a regular polygon.
(i) 3 sides
A polygon having three sides is called a triangle.
(ii) 4 sides
A polygon having four sides is called a quadrilateral.
(iii) 6 sides
A polygon having six sides is called a hexagon.
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 |
Fill in the blanks using the correct form of the verbs in brackets.
My little sister is very naughty. When she ____ (come) back from school yesterday, she had _____(tear) her dress. We _____(ask) her how it had _____(happen). She ______(say) she _____ _____ (have, quarrel) with a boy. She _____ _____ (have, beat) him in a race and he _____ ____ (have, try) to push her. She _____ ____ (have, tell) the teacher and so he _____ _____ (have, chase) her, and she _____ _____ (have, fall) down and _____ _____ (have, tear) her dress.
A | B | ||
---|---|---|---|
(i) | Bacteria | (a) | Fixing nitrogen |
(ii) | Rhizobium | (b) | Setting of curd |
(iii) | Lactobacillus | (c) | Baking of bread |
(iv) | Yeast | (d) | Causing malaria |
(v) | A protozoan | (e) | Causing cholera |
(vi) | A virus | (f) | Causing AIDS |
(g) | Producing antibodies |
Say whether the following are true or false.
1. Ignesious lost his wife, two children, his father-in-law, and his brother-in-law in the tsunami.
2. Sanjeev made it to safety after the tsunami.
3. Meghna was saved by a relief helicopter.
4. Almas’s father realised that a tsunami was going to hit the island.
5. Her mother and aunts were washed away with the tree that they were holding on to.