Treasure Maps 2 2 Read and answer. Write in your notebook.
It was my 11th birthday on September, 29. My friends and I had a Treasure
Hunt in the park in front of my house. There were six of us and we were
pirates for the day. It was great fun! We went up and down the park to find
all our party food! The sandwiches were behind the tree and the drinks were
in a box opposite the table! And where was my birthday cake? It was on a
chair, under a big hat! All my friends found a present each, then we sat down
to eat. It was a great day!
by Nurlan
Whose birthday was it? Nurlan's
2 When was his birthday?
29 conneque
3 How old was he? 11 lei
4 Where was the Treasure Hunt?
5 How many children were there?
6 Where were the sandwiches?
7 Where were the drinks?
8 What was there under a big hat?
НУ
По теореме о сумме углов треугольника имеем:
Угол А + угол В + угол С = 180 градусов;
44 градуса + угол В + 90 градусов = 180 градусов;
угол В = 180 градусов-44градуса-90градусов=46 градусов.
По теореме синусов имеем: АС/sinB=AB/sinC; 15/sin46 = AB/sin90 АВ=15*sin90/sin46=15*1/0.7193=приблизительно 20