Find Angle 'A' If :

Find angle 'A' if :

Sum

From the figure we have

sin A = `((10)/sqrt(2))/(10)`

sin A =`(1)/(sqrt(2)`

sin A = sin 45°

A = 45°

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Solution of Right Triangles

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Chapter 22: Solution of Right Triangles [Simple 2-D Problems Involving One Right-angled Triangle] - Exercise 24 [Page 303]

Chapter 22 Solution of Right Triangles [Simple 2-D Problems Involving One Right-angled Triangle]
Exercise 24 | Q 2.2 | Page 303

Find ‘x’, if:

Find AD, if:

Find the length of AD.
Given: ∠ABC = 60^o.
∠DBC = 45^oand BC = 40 cm.

Find the lengths of diagonals AC and BD. Given AB = 60 cm and ∠ BAD = 60°.

Find AB.

In trapezium ABCD, as shown, AB // DC, AD = DC = BC = 20 cm and ∠ A = 60°. Find: length of AB

Find the length of AB.

A kite is attached to a 100 m long string. Find the greatest height reached by the kite when its string makes an angles of 60° with the level ground.

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.