Drawn to a circle with center o, Mathematics

Assignment Help:

From a point P, two tangents PA are drawn to a circle with center O.If OP=diameter of the circle show that triangle APB is equilateral.

2473_circle7.png

Ans:    PA=PB (length of tangents from an external point

From ΔOAP,

sin∠APO =OA/OP = 1/2

Since OP = 2OA (Since OP=Diameter)

∴∠APO = 30o

since Δ APO ≈ ΔBPO

∠APO = ∠BPO = 30o

∴∠APB = 60o

ΔAPB is equilateral


Related Discussions:- Drawn to a circle with center o

Pairs of straight lines, The equation ax2 + 2hxy + by2 =0 represents a pair...

The equation ax2 + 2hxy + by2 =0 represents a pair of straight lines passing through the origin and its angle is tan q = ±2root under h2-ab/(a+b) and even the eqn ax2+2hxy+by2+2gx+

Pre Calculus, I have no idea how to graph exponential forms.

I have no idea how to graph exponential forms.

Probability, julie has 3 hats and 5 scarves. How many ways can she wear a h...

julie has 3 hats and 5 scarves. How many ways can she wear a hat and a scarf?

Two consecutive integers is 15 find out the larger integer, If the differen...

If the difference among the squares of two consecutive integers is 15 find out the larger integer. Let x = the lesser integer and let x + 1 = the greater integer. The sentence,

Permatuation and combination problem, How may six digit numbers can be made...

How may six digit numbers can be made in which the sum of the digits is even? Ans = 9*10*10*10*10*5

Evalute right-hand limit, Evaluate following limits. Solution ...

Evaluate following limits. Solution Let's begin with the right-hand limit.  For this limit we have, x > 4  ⇒          4 - x 3   = 0      also, 4 - x → 0  as x → 4

Geometry, what shapes can go into a triangular prism

what shapes can go into a triangular prism

Show that the vector is in the perfect matching polytope, 1.  Let G = (V,E)...

1.  Let G = (V,E) be a graph for which all nodes have degree 5 and where G is 5-edge is connected. a) Show that the vector x which is indexed by the edges E and for which x e =

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd