Karen Morrison and Nick Hamshaw Solutions for Exercise 6: Exercise 15.6

Find,correct to $1$ decimal place the lettered angles in given diagram

Find,correct to $1$ decimal place the lettered angles in given diagram

Find,correct to $1$ decimal place the lettered angles in given diagram

A ladder stands on horizontal ground and leans against a vertical wall.The foot of the ladder is $2.8 m$ from the base of the wall and the ladder reaches $8.5 m$ up the wall.Calculate the angle the ladder makes with the ground.

The top of a vertical cliff is $68 m$ above sea level.A ship is $175 m$ from the foot of the cliff.Calculate the angle of elevation of the top of the cliff from the ship.

$O$ is the centre of a circle with $OM=12 cm$.Calculate $AM$

$O$ is the centre of a circle with $OM=12 cm$.Calculate $AB$

The right-angled triangle $ABC$ has hypotenuse $AC=7 cm$ and side $BC=3 cm$. Calculate the length $AB$ and hence the angle $\angle ACB$.