Advertisements
Advertisements
प्रश्न
Find: AD
Advertisements
उत्तर
From the right triangle ABD
cos A = `"AD"/"AB"`
cos 60° = `"AD"/"AB"`
`(1)/(2) = "AD"/(12)`
AD = `(12)/(2)`
= 6 cm
APPEARS IN
संबंधित प्रश्न
Find 'x', if :
Find the length of AD.
Given: ∠ABC = 60o.
∠DBC = 45o
and BC = 40 cm.
In trapezium ABCD, as shown, AB // DC, AD = DC = BC = 20 cm and ∠ A = 60°. Find: length of AB
In trapezium ABCD, as shown, AB // DC, AD = DC = BC = 20 cm and A = 60°. Find: distance between AB and DC.
In the given figure, ∠B = 60°, AB = 16 cm and BC = 23 cm,
Calculate:
- BE
- AC
In right-angled triangle ABC; ∠B = 90°. Find the magnitude of angle A, if:
BC is `sqrt(3)` times of AB.
A ladder is placed against a vertical tower. If the ladder makes an angle of 30° with the ground and reaches upto a height of 15 m of the tower; find length of the ladder.
Find AB and BC, if:
Find PQ, if AB = 150 m, ∠ P = 30° and ∠ Q = 45°.
If tan x° = `(5)/(12)`,
tan y° = `(3)/(4)` and AB = 48 m; find the length of CD.
