Question
In a triangle ABC, AD is the altitude from A to BC. If
AD = 12 cm, AB = 13 cm, and AC = 14 cm, find the length of BC.Solution
Using Pythagoras' theorem on triangles ABD and ACD: Let BD = x and DC = y, so BC = x + y. From triangle ABD: AB² = AD² + BD² 13² = 12² + x² 169 = 144 + x² x² = 25 → x = 5 cm. From triangle ACD: AC² = AD² + DC² 14² = 12² + y² → 196 = 144 + y² y² = 52 → y = √52 ≈ 7.21 cm. BC = x + y = 5 + 7.21 = 12.21 cm.
Feelings of guilt or regret
If 21 March is Wednesday, what will be 25th March ?
Each bite is a burst of flavors _____________ enjoy your snack Options:
A little boy
P- and said that they were
Q- came begging
R- starving at home
Fill in the blanks with suitable articles like ‘a’, ‘an’and ‘the’ :
He saw ________ elephant at the Zoo.
I said to my friend,” Let us go to some hill station.”
Choose the word with correct spelling.
Ritesh said,” Let us play a game.”
The experience has made him generally hostile _____________ people.
This holiday season,
P- 51 million passengers will make
Q- their festive destinations on U.S. airlines
R- their way to the airport to fly to
