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Chapter 9: Q1. (page 337)

Find AB.In Exercise 3,CB炉 is tangent to 鈯�A.

Short Answer

Expert verified

The length of, AB=15.

Step by step solution

01

Step 1. Given information.

The given figure is as follows,

02

Step 2. Formula used.

tan胃=Opposite sideAdjacent side

03

Step 3. Put the data from the given figure.

tan胃=OppositesideAdjacentsidetan30掳=ACAB13=53ABAB=5(3)=15

Therefore, the value of, AB=15.

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Most popular questions from this chapter

鈯�Q and 鈯�R are congruent circles the intersect at C andD. CD炉 is called the common chord of the circles.

  1. What kind of quadrilateral is QDRC? Why?
  2. CD炉Must be the perpendicular bisector of 鈯�Q. Why?
  3. If QC=17 and QR=30, find CD.

Draw a diagram similar to the one shown, but much larger. Carefully draw the perpendicular bisectors of AB炉 and BC炉.

  1. The perpendicular bisect in a point. Where does that point to be?
  2. Write an argument that justifies your answer to part (a).

For each exercise draw 鈯�O with radius 12. Then draw radii OA炉 and to OB炉 form an angle with the measure named. Find the length of AB炉.

d. m鈭�AOB=120掳

a. Given:WZ炉is a diameter of 鈯�o;OX炉鈭�ZY炉

Prove: WX铃�鈮�XY铃�.

(Hint: draw OY铃�.)

JK炉 is tangent to 鈯�P and 鈯�Q.

JK=?
See all solutions

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