Problem 1 :
Calculate the perimeter of triangle ABC.
Problem 2 :
Boat A is 16 km from a lighthouse on a bearing of 055°. Boat B is 11 km from the same lighthouse on a bearing of 152°. Calculate the distance between the two boats.
Problem 3 :
Shown is sector OAB.
O is the centre of the circle with radius 9 cm.
A and B are points on the circle.
The length of the chord AB is 10.35 cm.
Find the area of sector OAB.
Problem 4 :
A hot air balloon is flying above two point, standing on the ground at points A and B, 600m apart.
The hot air balloon is 300 m from A and 500 m from B.
(a) Work out the angle of elevation from point B.
(b) How high is the hot air balloon from the ground?
Problem 5 :
A boat, located at position X is running out of fuel.
There are two ports located at Y and Z.
The boat must refuel as soon as possible.
How much closer is the boat to the port at Y than the port at Z?
1) the perimeter of triangle ABC is 21.5 cm.
2) the distance between the two boat is 18.94 km.
3) 38.78 cm^{2}
4) a) ∠B=30° b) h=200√14/3 m
5) From X to Z is 4.62 miles closer then X to Y.
May 21, 24 08:51 PM
May 21, 24 08:51 AM
May 20, 24 10:45 PM